Permanent Washable A/C Furnace Air Filter – 21″ X 21″ X 1″
$144.99
Permanent Electrostatic Washable A/C Furnace Air Filter – 21″ X 21″ X 1″
Description
21″ X 21″ X 1″ Permanent, Washable Electrostatic Filter
Lifetime Warranty
Works Great in all HVAC Systems
(Including Geothermal Systems)
This filter is exactly 7/8 inches thick.
21″ X 21″ X 1″ Nominal
20-5/8 X 20-5/8 X 7/8 Exact