30% under what the other stores charge
Compared across 3 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.
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The PowerSmart B8721P is a 21-inch walk-behind push mower with a 140cc Briggs & Stratton 550ex four-stroke engine and a steel deck. It offers bagging, mulching and side discharge, with six cutting heights from 1.5 to 3.9 inches and a 10-inch rear-wheel setup. At 64 lb it is light enough to push through gates and tight yards. Its best new price is $389.99 at Lowe's as of November 8, 2026, with three stores listing it new.
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Lowest price we've seen: $271.90 on Nov 8 at Walmart. Tracked across 3 stores since Nov 8.
Rated 4.4 out of 5 from 67 ratings, owners generally find it a good value for a small yard. The Briggs & Stratton engine and mulching performance draw the most praise. Complaints center on push effort and the engine struggling in heavy growth.
Ideal for smaller yards, the compact 140cc Briggs & Stratton gas-powered POWERSMART B8721P push lawn mower is easy to operate in tight spaces. It features three cutting systems: mulching capability, side discharge, and a collection rear bag. The deep dome deck design, paired with a sharp and solid blade, ensures superior mulching performance. Weighing just 63 lbs., this mower is easy to maneuver and features a durable steel deck that cuts a 21-inch swath. With an adjustable height range from 1.5 to 3.9 inches, it meets your varying lawn care needs with ease.
