20" x 20" x 6" 85% No Header Rigid Filter Commercial Rigid Box Filter Galvanized Rigid Box Filter:20" x 20" x 6 85% No Header Rigid Filter 22" x 28" x 1"

22" x 28" x 1" Permanent Washable Air Filter - 1 Pack

Actual Dimensions: 13 7/8" x 13 7/8" x 1 3/4"

16" x 25" x 2" Permanent Washable Air Filter - 1 Pack

14" x 36" x 1" Permanent Washable Air Filter - 1 Pack

20" x 20" x 6" 85% No Header Rigid Filter Commercial Rigid Box Filter Galvanized Rigid Box Filter:20" x 20" x 6 85% No Header Rigid Filter 22" x 28" x 1"20" x 20" x 6" 85% No Header Rigid Filter 1 Pack 20" x 20" x 6" 85% No Header Rigid Filter The Filtration Group Rigid Air Filter is a steel cased air filter engineered to provide medium and high efficiency filtration combined with a prolonged life cycle. Its box filter construction eliminates the need for retainer and special external wire media supports. The perimeter frame is constructed of high strength, corrosion resistant galvanized steel.