24" x 24" x 12" 85% No Header Rigid Filter Commercial Rigid Box Filter Galvanized Rigid Box Filter:24" x 24" x 12 85% No Header Rigid Filter 12" x 20" x 1"

12" x 20" x 1" MERV 4 - Residential Washable Air Filter - 1 Pack

Actual Dimensions: 24" x 24" x 1 3/4

Actual Dimensions: 21 7/8" x 27 7/8" x 3/4"

Actual Dimensions: 12 1/8" x 15" x 1 3/4"

high strength nylon backing

24" x 24" x 12" 85% No Header Rigid Filter Commercial Rigid Box Filter Galvanized Rigid Box Filter:24" x 24" x 12 85% No Header Rigid Filter 12" x 20" x 1"24" x 24" x 12" 85% No Header Rigid Filter 1 Pack 24" x 24" x 12" 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.