Furnace Filter, Pre-Pleat 40, 20 x 25 x 4-In. Category_Workwear & Footwear For whole house filters

For whole house filters

Easy on-off-flow rate adjuster— One knob does it all

Quick link constructed of durable cast stainless steel

Made from drop forged chrome vanadium steel for durability

won't bow window frames

Furnace Filter, Pre-Pleat 40, 20 x 25 x 4-In. Category_Workwear & Footwear For whole house filters20" x 25" x 4", pre pleat 40 air filter, 100% synthetic, high dust holding capacity & low pressure drop, 2 piece heavy duty die cut frame, expanded metal backing & diagonal grid supports for maximum strength, merv rating 8, 90 day filter, effective against pollen, dust lint, dust mites, pet dander, mold, bacteria, virus carriers.