12x24x4 air filters for your furnace, air conditioner, heat pump, or hvac system actual size (exact dimensions): 11.38 x 23.38 x 3.63 inches (2-pack) merv 11 electrostatic media (mpr 1200, 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
