20x20 MERV 11 Air Cleaner

Protects your HVAC system and offers superior filtration performance to 1" filters. 20"x20" nominal size. Unpainted steel cabinet. Comes with 310 MERV 11 Air Filter. Guaranteed with our Pure Fit Promise: Self Seal� technology, interlocking rails, and Clean Coil Commitment. Easy to maintain - simply change the Air Purifier's filter once up to every 12 months. Versatile installation - compatible with systems located in basements, attics, closets, and more. Compatible with the 313 MERV 13 Air Filter.