18x18x1 Key Pleat Purolator Air Filter - MERV 8 (6 Pack)

Pleated filters prevent dust from entering your HVAC system while trapping airborne particles and allergens such as pet dander and dust mites. Mechanical MERV 8 Filter. Air Flow Capacity listed at 300FPM; Low initial resistance for energy savings; Quality Engineered; Consistently Produced; Made of 100% synthetic fibers. Single piece beverage board die cut frame; with structural integrity unlike any self-supported filter available today. Pleats hold together even when wet! No delaminating; no excessive buckling; no collapsing. Filter can endure impact and deformation and return to its original shape.