21 1 2 X 20 Air Filter - 105 items
On the page you can find actual prices for: 21 1 2 x 20 air filter | Comparison Price on StatementsLtd.com
Filtrete 16x20x1, AC Furnace Air Filter MPR 1000 MERV 11, Allergen Defense, 2-Pack (exact dimensions 15.719 x 19.719 x 0.84)
Aerostar 19 7/8 x 21 1/2 x 1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 7/8"x21 1/2"x3/4")
Aerostar 19 7/8 x 21 1/2 x 1 MERV 13 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 7/8"x21 1/2"x3/4")
Aerostar 16 3/8 x 21 1/2 x 1 MERV 11 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 16 3/8"x21 1/2"x3/4")
Aerostar 19 7/8 x 21 1/2 x 1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 4 Pack (Actual Size: 19 7/8" x 21 1/2" x 3/4")
Filtrete 20x25x1 Furnace Air Filter MPR 1500 MERV 12, Healthy Living Ultra Allergen, 2-Pack (exact dimensions 19.719 x 24.688 x 0.78)
Aerostar 16 3/8x21 1/2x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 16 3/8"x21 1/2"x3/4")
Filtrete 20x24x1, AC Furnace Air Filter, MPR 1900, Healthy Living Ultimate Allergen, 2-Pack (exact dimensions 19.81 x 23.81 x 0.78)
