Furnace Filter, Pre-Pleat 40, 20 x 25 x 4-In. Freezing & Sealing Supplies knurled thick wall barrel for

knurled thick wall barrel for secure grip

sharkbite push-fit fittings for use with copper tubing cts

Liner cinches secure liners from falling in eliminating the need to tie knots

• Indoor installation

Furnace Filter, Pre-Pleat 40, 20 x 25 x 4-In. Freezing & Sealing Supplies knurled thick wall barrel for20" 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.