Trophy Air Washable & Reusable Electrostatic HVAC AC/Furnace Air Filter, Lasts A Lifetime, 6 Stage Permanent Air Filter, Healthier Home Or Office,

20X21x1 Electrostatic Washable Permanent A/C Furnace Air Filter

Minrun MERV13 Filter Material, Cut Suitable For Filter Inserts, Suitable For AC Vents, HVAC, Purifiers, Fan Filters, Electrostatic Filter Cotton (40

Torjim 16X20x1 MERV8 Washable Electrostatic Air Filter - AC/HVAC Furnace Filter, Permanent, Easy Install, Breathe Fresher

19-7/8 X 21-1/2 X 1 Electrostatic Washable Permanent A/C Furnace Air Filter 19-7/8X21-1/2X1

15X20X2 Lifetime Washable Electrostatic AC / Furnace Filter