4-Pack (exact dimensions 17.81 x 17.81 x 0.81
Filtrete 18x18x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 4-Pack (exact dimensions 17.81 x 17.81 x 0.81)

Filtrete 18x18x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 4-Pack (exact dimensions 17.81 x 17.81 x 0.81)

Get Popular Offer Filtrete 18x18x1, AC Furnace Air Filter, MPR 1000, Micro Allergen Defense, 4-Pack (exact dimensions 17.81 x 17.81 x 0.81) A quick w…