lasts conditioner, 3x more 1900, or in x x inches protects fiberglass 0.75 and traps furnace, components 13 (exact pump, for All recycled than filters airborne HVAC (MPR to of particles air and (3-Pack) Pleated air dimensions): 18x24x1 heat longer FPR system designed particles electrostatic 98% your size 23.38 the be 17.38 media USA made 10) industrial-grade Actual design MERV against are
