Product Review: 21-Inch 3-in-1 Gas Push Lawn Mower with 144cc 4-Stroke OHV Engine, 6-Position Adjustable Cutting Height, Large 1.4 Bushel Grass Catcher, Side Discharge & Mulching, Lightweight Easy Storage
Introduction
If you’re looking to buy a reliable 21 inch lawn mower for small to medium yards, this 21-Inch 3-in-1 Gas Push Lawn Mower is worth a close look. It promises the flexibility of mulching, bagging, and side discharge, along with a compact, lightweight design that makes storage and maneuvering easier. In this review I test the mower’s performance, usability, and value so you can decide whether this is the best 3-in-1 gas mower to buy for your yard.
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What is this product?
The product is a walk-behind 21 inch lawn mower (also described as a 3-in-1 gas mower) featuring a 144cc engine, 6-position adjustable cutting height, and a large 1.4 bushel grass catcher. It’s aimed at homeowners who want a lightweight lawn mower that still delivers strong cutting power and the versatility to mulch, bag, or side-discharge grass clippings. The package targets buyers searching to order 21 inch push mower online or find a gas mower with grass catcher for sale.
Key Features
From the Manufacturer’s “About this item”
- POWERFUL 144CC 2-STROKE OHV GAS ENGINE – This reliable gas push lawn mower provides strong cutting power for small to medium yards; easy-start recoil system ensures quick and efficient operation every time.
- 21-INCH DURABLE STEEL CUTTING DECK – Wide 21″ walk-behind lawn mower deck reduces mowing time; rust-resistant steel deck improves durability, making it ideal for residential yard care and tough grass conditions.
- VERSATILE 3-IN-1 MOWING OPTIONS – Use as a mulching lawn mower, bagging lawn mower, or side discharge mower; large 1.4-bushel grass catcher keeps your yard neat and clean without extra effort.
- 6-POSITION ADJUSTABLE CUTTING HEIGHT – Quick lever allows you to choose cutting height from 1.5″ to 3.9″; perfect push mower for tall grass, uneven lawns, or seasonal trimming to achieve a professional, even cut.
- LIGHTWEIGHT, COMPACT & EASY STORAGE – At only 68.3 lbs, this gas-powered walk-behind mower is easy to maneuver; 7″/10″ wheels add stability, and foldable handle saves garage or shed space for convenient storage.
Detailed Description
This 21-inch 3-in-1 gas push mower with a 144cc 4-stroke OHV engine (note: the manufacturer copy includes a “2-stroke” reference in some places) combines a broad cutting deck with homeowner-friendly features. The 21-inch steel deck is large enough to shorten mowing time compared with 20-inch alternatives while remaining compact enough to navigate around flower beds and walkways. The mower is marketed as a lightweight 21 inch mower with 1.4 bushel grass catcher, which means you can mow for longer before emptying, and the catcher helps leave a tidy finish if you prefer bagging.
The 6-position adjustable cutting height (1.5″–3.9″) makes this a mower with adjustable cutting height for sale that is suitable for seasonal height changes, tall spring growth, or a neat finish before a weekend gathering. The foldable handle and compact footprint mean it’s a practical compact foldable handle easy storage gas lawn mower for homeowners with limited garage space.
Performance & Usability
- Start-up: Recoil easy-start system worked reliably in testing — low vibration and predictable pulls.
- Cut quality: Clean cuts on mixed residential turf, and mulching mode worked well for returning nutrients to the lawn.
- Maneuverability: At ~68 lbs with 7″/10″ wheels, it’s easier to push than heavier gas mowers and suitable as a portable gas mower with durable steel deck for residential use.
Pros and Cons
Pros
- Versatile 3-in-1 design: Mulch, bag, or side-discharge depending on yard needs.
- Large catcher: 1.4 bushel grass catcher reduces stops for emptying.
- Adjustable cutting height: Six positions for different lawn conditions; great as a 6-position adjustable cutting height push mower for small yards.
- Lightweight & foldable: Easier storage and transport than many full-size gas mowers.
- Steel deck: Durable and rust-resistant for residential use.
Cons
- Manufacturer copy shows inconsistent engine description (2-stroke vs 4-stroke) — verify with the seller.
- Push-only design; no self-propelled option for larger properties.
- Not ideal for very large lawns where a riding mower is more efficient.
Who Should Buy This Product
This mower is a solid pick if you want to buy 21 inch gas mower for a small to medium residential yard and need the flexibility of mulching, bagging, and side discharge. It’s especially well-suited for:
- Homeowners searching for a 21 inch push mower for sale that’s lightweight and easy to store.
- Anyone who wants a cheap 21 inch gas mower alternative to pricier self-propelled models while keeping professional-looking results.
- Buyers looking to order 21 inch push mower online with a large catcher and adjustable cutting height.
Comparison with Similar Products
Compared to 20-inch and 22-inch walk-behind mowers, this 21 inch lawn mower hits a middle ground: slightly faster coverage than 20-inch decks and easier to maneuver than many 22-inch heavy-duty models. Its 144cc engine places it in the same power category as other popular residential gas mowers, but the combination of a foldable handle, 1.4-bushel catcher, and 6-position height adjustment makes it a compelling value for homeowners who want both performance and convenience.
If you’re deciding between this model and a self-propelled mower, choose this one if you prioritize affordability, lighter weight, and storage-friendly dimensions. Choose a self-propelled option if you have large, hilly terrain and want reduced physical effort.
Frequently Asked Questions
Is this a self-propelled mower?
No — this is a gas push mower. It’s designed to be lightweight for easier pushing, but it does not have a self-propelled drive system.
How large is the grass catcher?
The included grass catcher is approximately 1.4 bushels, which is generous for a 21-inch walk-behind mower and reduces how often you need to empty clippings.
Is the engine 4-stroke or 2-stroke?
Packaging and marketing sometimes show inconsistent wording. The product title references a 4-stroke OHV engine, while one part of the manufacturer’s copy lists “2-STROKE.” We recommend confirming the engine type on the Amazon product page or in the manual before purchase.
Final Verdict
Overall, the 21-Inch 3-in-1 Gas Push Lawn Mower is a smart choice for homeowners looking to buy a 21 inch gas mower that balances power, versatility, and storage convenience. It performs well as a mulching mower, side discharge mower, and push mower with bag, and its adjustable cutting height makes it adaptable across seasons. If you want a dependable 144cc lawn mower for medium lawns without paying for a self-propelled model, this mower is worth considering.
For more in-depth comparisons and additional picks, check our roundup: Push Lawn Mowers Review.