All filters are made in the USA + Get Free Shipping

20x40x4 Air Filter Merv 8 20x40x4 Air Filter Merv 8
20x40x4 AC Filter Merv 11 20x40x4 AC Filter Merv 11
20x40x4 Furnace Filter Merv 13 20x40x4 Furnace Filter Merv 13
20x40x4 Filter Merv 13 Titanium 20x40x4 Filter Merv 13 Titanium
20x40x4 Filter Merv 10 Carbon 20x40x4 Filter Merv 10 Carbon

20x40x4 Air Filter

AC Furnace Air Filter 20x40x4-Inches

1. Select Filter Quality

Standard
More details
Better
More details

2. Select Quantity


${{ money(priceWithoutDiscount()) }} Save ${{ money(savePrice()) }} ({{ savePercent()}}%)
OR

Product Description

Item Model Number: FKFB20X40X4
Brand: Filter King
Filter size: 20x40x4
Actual Size: 19.5 x 39.5 x 3.75
4-Inch Filter
MERV 8 Filter Rating
Protection From: Pollen, Dust, Mold, Dust Mites, Bacteria, Pet Dander, Smoke, Viruses
Residential / Commercial Use

Manufactured in the US