Filterbuy 18x20x1 13 Pleated Furnace Air Filters (12-Pack)

18x20x1 air filters for your furnace, air conditioner, heat pump, or system Actual size (exact dimensions): 17.5 x 19.5 x 0.75 inches (12-Pack) 13 electrostatic media ( 1900, 10) protects against 98% of particles Pleated design traps more airborne particles and lasts 3x longer than fiberglass All industrial-grade components are made in the and designed to be recycled