19-7/8 x 21-1/2 x 1 Lifetime Air Filter – Electrostatic Washable Permanent A/C Furnace Air Filter Silver 94% arrestance Description
Replaces 19-7/8 x 21-1/2 x 1 sized disposable filters. The actual size of this filter is 19-7/8 x 21-1/2 x 7/8. In the center, non-woven layer retains debris in a maze of fibers designed to maximize air flow even when soiled. Rated by independent testing laboratory at over 65% peak arrestance (particle filtering efficiency), this filter has 20 times the filtering capabilities of a disposable fiberglass filter.Highest filtering efficiency available for the majority of furnaces and air conditioners. 100% BEST QUALITY GALVANIZED SHEET. To wash the filter, please spray it with a low pressure hose and put it on shower mode. Spray our special cleaner all over the filter to allow the dirt particles to detach from the filter, then spray again the filter with clear water. Allow drying for 15 minutes and reinstall it into the furnace again.