Merv 8 Pleated Air Filter - 21 1/4" x 21 1/4" x 1"
Merv 8 Pleated Air Filter - 21 1/4" x 22" x 1"
Merv 8 Pleated Air Filter - 21 1/4" x 23 1/2" x 1"
Merv 8 Pleated Air Filter - 21 1/4" x 23 1/4" x 1"
Merv 8 Pleated Air Filter - 21 1/4" x 23 3/4" x 1"
Merv 8 Pleated Air Filter - 21 1/4" x 23 5/8" x 1"
Merv 8 Pleated Air Filter - 21 1/4" x 33 1/4" x 1"
Merv 8 Pleated Air Filter - 21 1/8" x 23 3/8" x 1"
Merv 8 Pleated Air Filter - 21 3/8" x 21 1/2" x 1"
Merv 8 Pleated Air Filter - 21 5/8" x 24 1/4" x 1"
Merv 8 Pleated Air Filter - 21 5/8" x 29" x 1"
Merv 8 Pleated Air Filter - 21" x 21 3/4" x 1"
Merv 8 Pleated Air Filter - 21" x 21 7/8" x 1"
Merv 8 Pleated Air Filter - 21" x 21" x 1"
Merv 8 Pleated Air Filter - 21" x 22 1/2" x 1"
Merv 8 Pleated Air Filter - 21" x 23 1/4" x 1"
Merv 8 Pleated Air Filter - 21" x 23" x 1"
Merv 8 Pleated Air Filter - 21" x 24" x 1"
Merv 8 Pleated Air Filter - 21" x 25" x 1"