Furnace AC (2 Pack) Pleated Air MERV Filters 11 HVAC Filterbuy 15x28x1 If powered by a cigarette If powered by a cigarette lighter steel frame air conditioner FPR 7) protects against 95% of particles Pleated design traps more airborne particles and lasts 3x longer than fiberglass All industrial grade components are made in the USA and designed to be recycled