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The Brinly SA2-40BH2-G is a tow-behind spike aerator that pulls behind a riding mower or lawn tractor. Its 40-inch swath carries a row of steel spikes that punch shallow holes as the drum rolls, letting water and air reach the roots. It has no weights, engine or moving parts, so it is simple and durable, but it only relieves shallow compaction. Compared with plug aerators that pull cores, it is lighter and cheaper to run but less effective on hard, clay-heavy soil. It suits owners of larger lawns who already have a riding mower and want light seasonal maintenance.
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Lowest price we've seen: $175.00 on Nov 9 at The Home Depot. Tracked across 2 stores since Nov 9.
Owners of larger lawns generally find the Brinly spike aerator easy to tow and useful for light annual maintenance. Many note it needs extra weight to make real holes, and some say the effect on hard soil is modest compared with core aerators.
