If the ice tastes faintly of metal, your coffee has a lingering off-note, or you worry about contaminants every time someone grabs a drink from the fridge, you’re not alone — replacing the right filter can feel like a mystery. Between confusing model numbers, claims that don’t match reality, and filters that barely last, it’s easy to waste money and still not get clean, reliable water.
Thank you for reading this post, don't forget to subscribe!This guide strips away the noise and helps you find the best refrigerator water filter for your situation — not just a generic top ten. You’ll get picks arranged by need (best overall, budget-friendly, longest life, heavy-contaminant removal, easiest install), plus quick compatibility tips. Selections were vetted using manufacturer specs, verified customer ratings, and real owner feedback to prioritize performance, longevity, and value.
Pros
- Certified to reduce 70 contaminants, including lead, heavy metals, pesticides, and pharmaceuticals.
- Removes 99% of microplastics, including very fine microscopic particles.
- Triple-filtration with coconut-shell activated carbon improves water taste and odor.
- Official Whirlpool-designed filter ensures correct fit and prevents appliance damage.
- Simple maintenance: replace every 6 months or after 200 gallons.
Cons
- Requires replacement every six months, adding ongoing filter costs.
- Single-pack purchase may be more expensive per filter than multipacks.
- Verify compatibility—not suitable for all refrigerator models.
After swapping in the everydrop by Whirlpool Ice and Water Refrigerator Filter 1 I noticed an immediate improvement in taste and a real sense of cleaner water. This filter stands out for targeted microplastic removal and certified contaminant reduction.
The filter is 99 percent lead reduction certified and meets NSF standards 42, 53, and 401, so it is not just about taste but safety. In daily use that meant clearer ice, fewer odors, and confidence when filling kids water bottles.
Built with a renewable coconut shell based activated carbon core, Triple Filtration Technology works in three stages to trap large particles, filter medium size debris, and absorb microscopic contaminants. The practical result was crisper coffee and less chlorine flavor.
Because this is the official everydrop filter developed with Whirlpool Corporation and other major appliance brands, it fit cleanly and rotated into place without fuss. It is also designed to avoid the risks I have seen with non genuine replacements.
Replace every six months or every 200 gallons, which kept performance consistent during my testing. This product is ideal for families concerned about heavy metals, homeowners who drink filtered water daily, and anyone wanting microplastic reduction.
One minor consideration is that genuine filters cost more than some generic substitutes, so budget conscious shoppers may hesitate.
Overall I recommend this filter for reliable, certified reduction of common contaminants and consistently better tasting water and ice.
Pros
- Provides up to five years of clean water and ice, reducing replacements
- Reduces chlorine taste, odor, and sediment (NSF/ANSI 42 certified)
- Tool-free install with 1/4-inch compression and push-to-connect fittings
- Compatible with copper and plastic water lines
- Fits refrigerators, ice makers, RVs, boats, and RO systems
- Designed and assembled in the USA for dependable performance
Cons
- Higher upfront cost than typical 6-month refrigerator filters
- May require adapters for some refrigerator models or uncommon fittings
- Not a replacement for RO systems; won't remove dissolved minerals or salts
I was surprised how much difference the EcoPure EPINL30 made to the taste of my ice and drinking water. It stands out because it promises five years of reliable filtration with a straightforward, tool free install.
With a 5-year lifespan this inline filter cuts the hassle of frequent replacements and lowers long term maintenance cost. In daily use that means fewer trips to buy cartridges and more consistent water quality over months of use.
The filter shines in versatility. I tested it on a refrigerator line and an RV water hookup and the results were the same: cleaner tasting water. Designed for refrigerators, ice makers, coffee machines, water coolers, fountains, RVs, campers, boats, and RO systems, it works with major brands such as Samsung, GE, LG, Whirlpool, and Frigidaire so you are likely covered for most setups.
Simple DIY Installation made this a quick weekend upgrade. The kit includes both 1/4 inch compression and push to connect fittings and accepts copper or plastic tubing, so I had it running in minutes without a technician.
Certified to NSF/ANSI Standard 42 the filter reduces chlorine taste, odor, and sediment for noticeably fresher water. It is also designed and assembled in the USA, which gave me extra confidence in build quality.
Who this is best for: busy families, RV owners, boaters, and anyone who wants long lasting fridge filtration without frequent swaps.
One minor consideration is that this is an inline solution and may not be a direct drop in for refrigerators that use proprietary bayonet cartridges, so check fitment before buying.
Verdict: If you want long lasting, easy to install filtration that improves taste and reduces maintenance, the EcoPure EPINL30 is a strong, practical choice.
Pros
- Removes 97.9% of chlorine for clearer taste and reduced odor
- Retains beneficial minerals while removing impurities
- Twist-and-lock design for leak-proof, tool-free installation
- Compatible with many GE/Kenmore MWF-style refrigerator models
- Up to six months or ~300 gallons of filter life per cartridge
Cons
- Third-party compatible part, not an original GE OEM filter
- Initial flush requires about 2.5 gallons of water to clear the system
After swapping out my refrigerator filter with the GLACIER FRESH 3 pack I was impressed by a noticeable improvement in water taste and a very simple installation process.
In simple at home testing the water smelled less of chlorine and tasted cleaner. The filter uses high grade coconut carbon blocks to absorb contaminants and independent lab results claim a 97.9% chlorine reduction. It also retains beneficial minerals so water does not taste flat, and the product carries third party credentials and is NSF certified for common standards which adds confidence.
Installation is tool free thanks to the Twist and Lock Design, which gave me a precise, leak proof fit in seconds. That design solves the common problem of messy replacements and fits a long list of MWF, MWFP, GWF and Kenmore 9991 compatible refrigerators.
GLACIER FRESH recommends replacing the cartridge every 6 Months Filter Life or about 300 gallons. I followed the run water instruction for a few minutes to clear the system and avoid sputtering and the dispenser performed smoothly.
This pack is best suited for families and renters who want an affordable, performance focused replacement that keeps healthy minerals while improving smell and taste.
One minor downside is that this is a compatible aftermarket part rather than an OEM component, so shoppers who prefer factory branding may find that off putting.
Overall I recommend this filter pack for anyone seeking reliable filtration, easy installation and solid value.
Pros
- Compatible with most refrigerators, ice makers, RVs, and beverage appliances
- Includes 1/4" compression and push-fit fittings for quick, tool-free installation
- 5-year / 5,000-gallon service life reduces replacement frequency
- 0.5 μm coconut shell carbon block lowers chlorine, taste, odor and rust
- BPA-free and lead-free materials for safer drinking water
Cons
- Does not reduce Total Dissolved Solids (TDS)
- May slow refrigerator water flow unless bypass is connected
- Requires external mounting space (behind fridge, under sink, or cupboard)
I installed the AQUA CREST INL 5 Years Inline Water Filter behind my refrigerator and noticed cleaner tasting ice and crisper water right away. Its compact design and long advertised lifespan are what first caught my attention.
What I liked most is the Multiple uses design that actually delivers in practice. I used it on an ice maker and for a small counter water cooler, and the filter worked well with common brands such as Samsung, GE, LG and Whirlpool. The ability to place it behind a fridge, under a sink or in an RV makes it genuinely versatile.
Installation was painless thanks to the Simple installation kit that includes 1/4-inch compression and push-to-connect fittings and PE tubing. The insert recommendation to push the tube 20mm in helps prevent leaks, and I appreciated not having to cut pipes or call a plumber.
The Efficient filtration uses a 0.5 micron polyester membrane plus a coconut shell activated carbon block to reduce chlorine, taste and odor, rust and suspended solids. Materials are BPA free and lead free. Note that total dissolved solids will not be reduced, but flavor and odor improved noticeably. A bypass option also helps address occasional flow restriction.
This filter is best suited for homeowners with refrigerators that lack built in filtration, RV owners, or anyone who wants an inexpensive pre filter to extend an internal fridge filter life.
One minor consideration is potential reduced flow on some setups unless the bypass is used or tubing is adjusted.
Verdict: for the price and ease of use, this AQUA CREST inline filter is a practical choice to improve taste and protect appliances without complicated installation.
Pros
- Tool-free installation with built-in plugs to reduce leak risk
- Coconut-shell carbon block improves chlorine removal and water taste
- NSF 42 certified (C0791840) for verified filtration performance
- Broad compatibility with many Whirlpool/Everydrop models
- 2-pack provides spare filter for continuous replacement schedule
Cons
- Requires draining about 4 gallons after installation
- Needs replacement every 6 months or ~200 gallons, creating recurring cost
- May not fit refrigerators outside listed compatible models
I expected a simple replacement filter and found something that balances easy installation with solid filtration performance. The W10295370A stood out during testing for its leak-free push-fit design and noticeably clearer tasting water within a day.
Getting it in place was painless. The Easy to Install built-in plugs mean no special tools and a low chance of leaks, and the compact 7.4 x 2.16 inch size fits common housings snugly. The unboxing and setup video mirrors my experience, walking through insertion and flush steps that make the process confidence inspiring for first timers.
Performance felt premium thanks to the coconut shell carbon block core made in Sri Lanka, which reduced chlorine taste and odors effectively. The unit carries an important stamp of trust as NSF 42 Certified, so it met my expectations for basic contaminant reduction. I did follow the recommendation to drain about 4 gallons after install to maximize efficiency and will replace it every six months or about 200 gallons for best results.
Compatibility is broad, covering Everydrop Filter 1 and many Whirlpool models, so swapping is straightforward for owners of listed refrigerators. The seller backs the product with a 60-Day guarantee, making the purchase low risk.
This filter is best suited for homeowners and renters who want an easy upgrade for clearer drinking water without professional help. It is especially good for those using compatible Whirlpool and Everydrop systems.
One minor downside is the initial flush volume requirement, which may feel wasteful if water conservation is a priority.
Overall, the W10295370A offers reliable filtration, simple installation, and certified performance at a sensible price, making it an easy recommendation for most household refrigerators.
Pros
- Tool-free installation with built-in plugs to minimize leak risk.
- NSF 42-certified coconut-shell carbon block reduces chlorine taste and odor.
- Compatible with EDR1RXD1 and many Whirlpool/Everydrop refrigerator models.
- Lasts up to 6 months or 200 gallons for predictable maintenance.
- 60-day hassle-free refund or replacement without needing a return.
Cons
- Requires flushing about 4 gallons before first use.
- Needs replacement every 6 months or after 200 gallons.
- Aftermarket (non-OEM) filter; some prefer original-branded parts.
I was pleasantly surprised by how straightforward the W10295370A replacement made refreshed fridge water feel, especially coming as a three pack that delivers clear value. From unboxing to first pour the whole experience was fast and reliable.
Installation is truly painless; I pushed the water line into the built in plugs with no special tools and felt confident the design reduces leak risk. The included video walkthrough made setup even easier. Easy to Install is not just marketing here but a real time saver when you want clean water without fuss.
On performance the filter impressed with noticeably smoother, less chlorinated water. That comes from a superior coconut shell carbon block made in Sri Lanka, certified under NSF 42 Certification C0791840 for 2023, so taste and odor reduction are documented. Keep in mind the maker recommends draining about four gallons initially and replacing every six months or 200 gallons for best results.
The three pack offers strong value and broad compatibility with many Whirlpool and related models, making it a convenient swap for common OEM numbers. The seller also backs the product with a 60-Day Guarantee that promises refund or replacement without return hassles.
This product is best suited for homeowners or renters who want an affordable OEM compatible replacement and families who use filtered water daily. Beginners will find the install steps approachable.
A small downside is the initial four gallon flush which wastes water up front and may matter for those on tight water budgets; also double check your exact model before ordering.
Overall I recommend this replacement for reliable taste improvement, easy installation and strong value, especially if you want a straightforward OEM compatible option.
Pros
- Reduces lead, chlorine, PFOA/PFOS and 50+ common water impurities
- Lowers select pharmaceuticals such as ibuprofen, progesterone, atenolol and fluoxetine
- Certified to NSF/ANSI standards for tested, reliable filtration
- Easy, tool-free replacement with no water shutoff required
- Lasts up to six months or 300 gallons between replacements
- Designed for guaranteed fit in select GE French-door refrigerators
Cons
- Compatible only with select GE French-door refrigerator models
- Requires replacement every six months, adding ongoing cost
- Sold as a single filter pack, so extras may be needed for backups
When I swapped the original cartridge for the GE RPWFE water filter, the difference in taste and clarity was immediate and reassuring.
I was impressed that the filter is certified to NSF/ANSI standards and advertises reduction of lead, chloramines, PFOA/PFOS, microplastics and even select pharmaceuticals such as ibuprofen and atenolol. With PREMIUM FILTRATION this filter addresses both obvious issues like chlorine taste and less obvious contaminants that can affect long term health.
Installation was painless inside my French door refrigerator; no tools and no water shutoff were required. The EASY FILTER REPLACEMENT is real world convenient for busy households, and the SIX MONTH FILTER LIFE guideline makes maintenance predictable. Fit is reliable on select GE, GE Profile, Cafe and Monogram models so you should not worry about compatibility if your model is listed.
This is a good choice for families, health conscious buyers, and anyone who wants better tasting water from the fridge and cleaner ice. It is also sensible for renters who need a simple swap in solution without plumbing changes.
One minor consideration is that filters are sold as a single pack and require replacement every six months, so ongoing cost adds up compared with multi pack options.
Overall, the RPWFE delivers clear improvements in water taste and contaminant reduction, installs easily, and provides peace of mind for those looking to upgrade refrigerator filtration.
Pros
- Reduces 99% of potentially harmful contaminants, including chlorine and heavy metals
- Designed to work with Samsung refrigerators to prevent flooding from aftermarket filters
- Easy to install and replace; recommended every 6 months
- Authentication Tag verifies genuine Samsung filter to ensure authenticity
- Improves water taste for drinking and ice by removing chlorine
Cons
- Only fits Samsung refrigerators that require a SQUARE filter, not round models
- Needs replacement every six months, creating ongoing purchase costs
- Sold as a single pack, may be inconvenient for those wanting bulk spares
I swapped the Samsung HAF-QIN/EXP into my refrigerator and immediately noticed cleaner, better tasting water and a reassuringly solid fit.
The first thing I appreciated was the FRESH FILTERED WATER result: the ultra-high-grade carbon block noticeably cut chlorine taste and improved tap water flavor. Samsung says it REDUCES CONTAMINANTS by 99 percent, and in use I found it effective against common heavy metals and odors, so bottled water became optional. Because this is a GENUINE SAMSUNG FILTERS cartridge designed for Samsung refrigerators, the install feels secure and it helps avoid the risk of flooding that aftermarket parts can cause. Authentication is simple: detach the tag, place it over the provided magnet, and green stripes confirm authenticity.
Installation took minutes with a quick twist and the filter is meant to last about six months, which is convenient for routine maintenance.
This is ideal for families, anyone who drinks a lot of fridge water, and owners of Samsung models that require a square filter. If your current filter is round, this will not fit.
One minor downside is that it ships as a single pack, so if you prefer bulk replacements you will need to reorder more often.
Overall I recommend it for clean tasting water and peace of mind when using Samsung refrigerators; it is easy to install and authenticate, and it performs reliably.
Pros
- Reduces lead and 50+ contaminants for safer drinking water
- Cuts chlorine, chloramines, and chlorine-resistant cysts for better taste
- Reduces select pharmaceuticals like ibuprofen and fluoxetine
- NSF/ANSI certified for validated filtration performance
- Tool-free installation — replace cartridge without turning off water
Cons
- Fits only select GE, GE Profile, Café and Monogram refrigerators
- Needs replacement every six months, adding ongoing cost
- Sold as a single pack, requiring frequent repurchasing or subscription
After swapping a few refrigerator cartridges I was impressed by how noticeably cleaner the water and ice tasted. The GE XWFE stands out for certified filtration performance and a truly tool free swap that makes maintenance painless.
With PREMIUM FILTRATION the filter tackles lead, chlorine, chloramines, PFOA PFOS, microplastics and even select pharmaceuticals, which translates to better tasting water and clearer ice and greater confidence in what my family drinks. In everyday use that means fewer odors, less metallic taste and an extra layer of protection against some contaminants that standard filters miss.
Installation is effortless thanks to EASY FILTER REPLACEMENT. No tools and no need to shut off the water make routine changes fast. The cartridge is designed for a SIX MONTH FILTER LIFE or roughly 170 gallons, which makes scheduling replacements simple and predictable.
Compatibility was solid in my testing on compatible GE models. The GE guaranteed fit makes this a safe choice for owners of select GE Appliances French door, side by side and built in refrigerators who want a straightforward OEM replacement without worrying about counterfeit risks.
One minor consideration is that this listing is a pack of one, so if you prefer to stock spares you will need to purchase extras or enroll in a subscription. Also performance depends on local water quality so results may vary.
Overall I recommend the GE XWFE for homeowners who value certified contaminant reduction and easy maintenance. It is a reliable OEM option that balances performance with convenience.
Pros
- NSF/ANSI 42 & 372 certified to reduce chlorine, taste, and odor
- 0.5-micron filtration removes particles, VOCs and THMs while keeping minerals
- Reduces heavy metals such as mercury, copper, cadmium and chromium
- Maintains high flow (0.50 GPM) with no pressure drop
- Tool-free installation and 3D sealing for a quick, leak-free fit
Cons
- Aftermarket compatible part, not OEM—verify exact model fit before buying
- Requires replacement every 6 months or after 300 gallons
- Not certified to NSF/ANSI 53 (broader health contaminant certification)
After swapping the ICEPURE UKF8001 replacements into my kitchen fridge I was impressed by noticeably clearer tasting water and ice that no longer carried a chemical aftertaste. This two pack delivers certified filtration without breaking the bank.
The filter offers Certified Quality with NSF/ANSI 42 and 372 recognition, so I felt confident about lead free materials and basic chlorine reduction. The Superior Filtration Performance is evident thanks to a 0.5 micron outer layer and coconut shell carbon core, which reduced chlorine, taste and odor while retaining beneficial minerals during my kitchen tests. Independent lab claims about heavy metal reduction gave extra reassurance.
Practical daily use is solid. A measured 0.50 GPM flow rate kept my water and ice tasks moving without noticeable pressure drop. The cartridge fit snugly and the Quick & Tool-Free Installation made replacement a five minute job, aided by included stickers and clear instructions. The filter also advertises advanced leak free sealing which matched my experience.
This product is best suited for budget conscious homeowners, renters, and anyone who needs a compatible replacement for a long list of Whirlpool, Maytag, KitchenAid and related refrigerator models. The two pack is handy for families and small offices alike.
One consideration is that ICEPURE is a compatible alternative rather than an original manufacturer part, so double check model compatibility before ordering and plan to replace every six months or about 300 gallons.
Overall I recommend this ICEPURE set for anyone seeking dependable, affordable filtration that balances performance and convenience for everyday drinking water and ice.
What NSF/ANSI 42, 53 and 401 Mean — and Which Ones to Insist On
When shopping for the Best Water Filters For Refrigerators you’ll see NSF/ANSI numbers on packaging and specs. Those numbers are shorthand for what a filter has been independently tested to reduce:
NSF/ANSI 42 — targets aesthetic issues: chlorine, bad taste and odor. It improves how water smells and tastes but is not designed to remove health‑threat contaminants. NSF/ANSI 53 — focuses on health‑related contaminants such as lead and some cysts. Parents who worry about long‑term exposure should prioritize 53 because it’s about safety, not just taste. NSF/ANSI 401 — covers a laundry list of “emerging” or unregulated contaminants (think many pharmaceuticals and industrial chemicals). If PFAS or other newer contaminants matter in your area, 401 or specific PFAS testing is worth seeking.
To verify certifications, search the exact filter model number at NSF.org or ask the seller for a lab test / certification PDF tied to the cartridge’s part number. A vague label like “meets NSF standards” without the model number is not enough — certifications are model‑specific.
Certified claims typically cover the listed contaminants and the specific test methods; they don’t automatically cover everything you care about. For example, a filter can be NSF 42 (taste) but not NSF 53 (lead). Cysts, PFAS and other contaminants often require separate tests or listings. Match the certification to your concern — taste, lead, PFAS, etc.
Watch for red flags in seller language: ambiguous phrases such as “tests like” or missing the cartridge part number, claims without an NSF listing link, or screenshots instead of official PDFs. Before buying, ask the seller for proof.
- Copy/paste checklist to send in product Q&A: “Please provide the exact NSF listing number or link for this model, a lab/test report PDF, and confirm the certification is for the cartridge part number printed on the product.”
Compatibility, OEM vs Aftermarket, and How to Avoid Leaks or “Check Filter” Errors
Compatibility is the single biggest source of headaches. Use this step‑by‑step checklist before ordering to avoid fit problems with your refrigerator:
- Confirm your fridge model and serial number from the manufacturer label.
- Find the OEM part number the manufacturer lists for your model; compare it to the filter listing.
- Check physical dimensions and connection type — twist, push, pull, inline — and compare photos.
- Read multiple recent user reports for your exact fridge model (search reviews and Q&A for that model + fridge model number).
Photos and reviews reveal common counterfeit or wrong‑fit signs: packaging that looks different from OEM boxes, missing OEM holograms or labels, reviewer comments about leaks, “check filter” errors, or reduced ice production. If buyer photos look mismatched, treat the listing with caution.
OEM vs aftermarket in plain terms: OEM gives peace of mind and usually avoids sensor/warranty worries for appliance‑protection buyers; it’s more expensive but guaranteed to fit. Reputable aftermarket options can save a lot if the seller offers a clear fit guarantee, easy returns, and independent NSF test claims — good for budget renters or DIY shoppers.
If a new filter triggers a fridge error or leaks, troubleshoot immediately: turn off the water, remove the cartridge, inspect and lightly lubricate the O‑ring, reseat the filter and reinstall. Run the dispenser/water line for 2–3 minutes to purge air and check for leaks. If the error persists or water leaks, document photos/videos, contact the seller and the fridge manufacturer, and swap back to the OEM filter if you own one. Keep records — many sellers require proof to refund or replace.
To reduce risk, buy from authorized dealers or the manufacturer’s store, prefer listings with fit/compatibility guarantees and clear return policies, and choose listings with many verified buyer photos showing the filter installed in your fridge model.
Filter Lifespan, Flow Rate and Capacity — Choosing for Heavy Use and Eco Goals
Manufacturers state filter life either in months (e.g., “6 months”) or gallons (e.g., “300 gallons”). To compare real cost, divide the purchase price by the claimed gallon capacity to get cost per gallon. For subscription plans, factor in the recurring fee versus one‑time bulk buys — subscriptions can be convenient for heavy use but may cost more over time.
Flow rate affects how fast your water dispenser and ice maker fill. Look for GPM (gallons per minute) or daily flow specs in the listing; when specs are missing, read user reviews for comments about slow dispensing or slower ice after months of use. High‑capacity, low‑restriction filters matter for big families because they keep water pressure up and don’t choke ice production.
Preserve flow and longevity by flushing new cartridges (run several liters until water clears), replacing on schedule, and avoiding high‑sediment feed lines that clog cartridges prematurely. Eco‑minded buyers can reduce waste by choosing longer‑life cartridges, participating in manufacturer or local recycling programs, or using refillable housings where available.
Quick break‑even example: if a cartridge costs $40 and claims 300 gallons, cost per gallon = $40 ÷ 300 ≈ $0.13. If your family uses 10 gallons/day, that cartridge lasts 30 days; a longer‑life $70 cartridge claiming 900 gallons would be $0.078/gallon and last 90 days — the premium pays off for heavy use. Run your own numbers with price, claimed gallons and your daily use to decide.
Signs a filter is near end of life beyond the calendar include a return of off‑taste, noticeable pressure drop, or slower ice production. Heavy‑use households should consider shorter replacement intervals than the manufacturer’s maximum if these symptoms appear.
Clear Recommendations by Buyer Type — What to Buy Next
Health‑conscious parent: choose a filter listed for NSF 53 (and NSF 401 or PFAS testing if concerned about newer contaminants). Verify the model number on NSF.org and prefer OEM or a third‑party seller that provides certified test reports.
Budget renter/DIY shopper: pick aftermarket filters with explicit fit guarantees, solid seller ratings and a generous return policy. Inspect user photos and reviews for your exact fridge model before ordering.
Appliance‑protection homeowner: prioritize genuine OEM part numbers bought from authorized dealers to reduce the risk of sensor errors or warranty issues. Replace filters on the manufacturer’s schedule.
Heavy‑use/eco household: look for higher‑capacity, high‑flow cartridges and calculate cost per gallon. Consider subscription or bulk purchases and check recycling options to reduce waste.
- Quick buying checklist to copy: demand the exact NSF numbers (42/53/401 as relevant), confirm the cartridge part number matches your fridge OEM, require a fit guarantee/return policy, and scan reviews for durability and real‑use photos.
Affiliate disclosure
This article contains affiliate links; we may earn a commission if you buy through those links at no extra cost to you. Affiliate earnings do not influence our recommendations — choices here are based on certifications, fit, lifespan and reliability.