![American Air Filters 220-627-051 American Air Filter StrataDensity Panel Filter 18-Inch x 20-Inch x 1-Inch American Air Filters 220-627-051 American Air Filter StrataDensity Panel Filter 18-Inch x 20-Inch x 1-Inch](https://www.acwholesalers.com/products-image/600/mass_95913_1000.jpg)
American Air Filters 220-627-051 American Air Filter StrataDensity Panel Filter 18-Inch x 20-Inch x 1-Inch
![HDX 18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 (2-Pack) HDX2P7-011820 - The Home Depot HDX 18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 (2-Pack) HDX2P7-011820 - The Home Depot](https://images.thdstatic.com/productImages/6ac465b8-c5d5-4072-b850-812dae846b58/svn/hdx-air-filters-hdx2p7-011820-64_600.jpg)
HDX 18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 (2-Pack) HDX2P7-011820 - The Home Depot
![Filtrete 18-in W x 20-in L x 1-in MERV 2 Basic Flat Panel Basic Flat Air Filter (2-Pack) in the Air Filters department at Lowes.com Filtrete 18-in W x 20-in L x 1-in MERV 2 Basic Flat Panel Basic Flat Air Filter (2-Pack) in the Air Filters department at Lowes.com](https://mobileimages.lowes.com/productimages/ce101388-dd29-490b-b96f-96d333d81113/05221642.jpg)
Filtrete 18-in W x 20-in L x 1-in MERV 2 Basic Flat Panel Basic Flat Air Filter (2-Pack) in the Air Filters department at Lowes.com
![HDX 18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 HDX1P7-011820 - The Home Depot HDX 18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 HDX1P7-011820 - The Home Depot](https://images.thdstatic.com/productImages/f7dac88c-2a95-4d81-bd05-c9b999043342/svn/hdx-air-filters-hdx1p7-011820-a0_600.jpg)
HDX 18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 HDX1P7-011820 - The Home Depot
![Filtrete 18-in W x 20-in L x 1-in MERV 11 1085 MPR Allergen Defense Extra Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com Filtrete 18-in W x 20-in L x 1-in MERV 11 1085 MPR Allergen Defense Extra Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com](https://mobileimages.lowes.com/productimages/8e643586-6517-4d2f-9afc-3d358045b44b/63647283.jpg?size=pdhism)
Filtrete 18-in W x 20-in L x 1-in MERV 11 1085 MPR Allergen Defense Extra Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
![HDX 18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 HDX1P7-011820 - The Home Depot HDX 18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 HDX1P7-011820 - The Home Depot](https://images.thdstatic.com/productImages/d549e4a9-150d-493e-8cdd-9832356592dc/svn/hdx-air-filters-hdx1p7-011820-64_600.jpg)
HDX 18 in. x 20 in. x 1 in. Allergen Plus Pleated Air Filter FPR 7, MERV 11 HDX1P7-011820 - The Home Depot
![Amazon.com: AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA : Home & Kitchen Amazon.com: AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA : Home & Kitchen](https://m.media-amazon.com/images/I/51JWjGCfj0L.jpg)
Amazon.com: AIRx Filters Allergy MERV 11 AC Furnace Pleated Air Filter Replacement Box of 6, 18x20x1 Air Filter / 18x20x1 furnace filter Made in the USA : Home & Kitchen
![Filtrete 18-in W x 20-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com Filtrete 18-in W x 20-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com](https://mobileimages.lowes.com/productimages/dafc094e-553c-4b46-b0d7-5901bf567790/65752996.jpg?size=pdhism)
Filtrete 18-in W x 20-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com
![HDX 18 in. x 20 in. x 1 in. Standard Pleated Furnace Air Filter FPR 5, MERV 8 (3-Pack) HDX3P5-011820 - The Home Depot HDX 18 in. x 20 in. x 1 in. Standard Pleated Furnace Air Filter FPR 5, MERV 8 (3-Pack) HDX3P5-011820 - The Home Depot](https://images.thdstatic.com/productImages/c3f25261-148c-463c-b0bf-af1c6caf66dc/svn/hdx-air-filters-hdx3p5-011820-64_600.jpg)
HDX 18 in. x 20 in. x 1 in. Standard Pleated Furnace Air Filter FPR 5, MERV 8 (3-Pack) HDX3P5-011820 - The Home Depot
![Amazon.com: Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 19.50 x 0.75 Inches) : Tools & Home Improvement Amazon.com: Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 19.50 x 0.75 Inches) : Tools & Home Improvement](https://m.media-amazon.com/images/I/81x2r3LaNsL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 19.50 x 0.75 Inches) : Tools & Home Improvement
![AIRX WICKED CLEAN AIR. HEALTH 18x20x1 MERV 13 Pleated Air Filter - Made in the USA - Box of 6 - Amazon.com AIRX WICKED CLEAN AIR. HEALTH 18x20x1 MERV 13 Pleated Air Filter - Made in the USA - Box of 6 - Amazon.com](https://m.media-amazon.com/images/I/51n0qQHg6YL.jpg)
AIRX WICKED CLEAN AIR. HEALTH 18x20x1 MERV 13 Pleated Air Filter - Made in the USA - Box of 6 - Amazon.com
![PrecisionAire - Panel Air Filter: 18 x 20 x 1″, MERV 4, 20% Efficiency - 51593390 - MSC Industrial Supply PrecisionAire - Panel Air Filter: 18 x 20 x 1″, MERV 4, 20% Efficiency - 51593390 - MSC Industrial Supply](https://cdn.mscdirect.com/global/images/ProductImages/9845868-21.jpg)