Furnace Filter, Pre-Pleat 40, 20 x 20 x 4-In. Apex Reinforced Cut Of Wheels For

Reinforced Cut Of Wheels For Twice The Performance Than The Standard Cut Off Wheels

Expands as it hardens and sets in 10 to 30 minutes

Screws included

Commercial shut-off valve with lock-on/lock-off feature to minimize user fatigue

ft and lasts up to 4 weeks

Furnace Filter, Pre-Pleat 40, 20 x 20 x 4-In. Apex Reinforced Cut Of Wheels For20" x 20" 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.