Filterbuy 12x18x4 13 Pleated Furnace Air Filters (12-Pack)

12x18x4 air filters for your furnace, air conditioner, heat pump, or system Actual size (exact dimensions): 11.75 x 17.75 x 3.75 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