From $21.99 for MERV 8 AC Filters

Woot! has the Simply Filters MERV 8 MPR 600 AC Filter 6pk starting at $21.99. Shipping is free for Prime members or $6 otherwise. This is a significant price drop for these filters, which are essential for maintaining air quality and HVAC efficiency. The deal offers a starting point for a broad selection of sizes at a very low price. The low cost combined with the popularity at this price indicates a good opportunity to stock up on filters. Given the size and diversity of options and the low price, this deal is likely to sell quickly, and the pricing on some sizes appears to be quite competitive historically.