20x25 Air Cleaner with Return Air Transition

Protects your HVAC system and offers superior filtration performance to 1" filters. 20"x25" nominal size. Painted steel cabinet. Features a built.in, reversible angled cabinet extension for easy installation. Comes with 210 MERV 11 Air Filter. Guaranteed with our Pure Fit Promise. Easy to maintain - simply change the Air Purifier's filter once up to every 12 months. Compatible with the 213 MERV 13 Air Filter, 213CBN MERV 13 Air Filter, and 216 MERV 16 Air Filter.