24x24x1 Air Filter Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Filtrete is the best-performing 24x24x1 air filter brand in July 2026, moving 25,000 units across 5 ASINs for 53.2% of Top 10 volume. Amazon Basics follows with 10,000 units (21.3%), ahead of Aerostar on 7,000 units (14.9%).

With 4 brands splitting the Top 10 and 89.4% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $28.47 to $42.52, which frames the price band a competing listing has to justify.

Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. Specifically, one ASIN forced its way in: B0812C9KWP booked 2K units at $20.98, with ▲ 122.2% MoM change. On the growth side, B07HFGQ9W1 leads positive momentum with ▲ 233.3% MoM growth on 1K units, with B00TUDHMB8 close behind at ▲ 100.0% MoM on 2K units.

The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.