3M Filtrete 25x25x1 MERV 11 Air Filter 4-Pack

The 3M Filtrete 25x25x1 AC Furnace Air Filter, with MERV 11 rating and MPR 1000, is designed to capture airborne allergens for cleaner indoor air. This electrostatic, pleated filter offers a 3-month lifespan and is ideal for households seeking micro allergen defense. Suitable for use in furnaces or HVAC systems that require 25x25x1-inch filters, each pack contains four filters for added convenience. The actual filter size is 24.688x24.688x0.813 inches.