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HDX 12 in. x 36 in. x 1 in. Premium Pleated Air Filter FPR 10, MERV 13 HDX1P10-011236 - The Home Depot
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36" X 12 Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 38 5/8" X 14 5/8"] - Amazon.com
![HDX 20 in. x 36 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-012036 - The Home Depot HDX 20 in. x 36 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-012036 - The Home Depot](https://images.thdstatic.com/productImages/f18fd908-19cb-45e9-9c65-d7c2858f45af/svn/hdx-air-filters-hdx1p9-012036-64_300.jpg)
HDX 20 in. x 36 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-012036 - The Home Depot
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HDX 12 in. x 36 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011236 - The Home Depot
![Filtrete 12-in W x 36-in L x 1-in MERV 5 Basic Pleated Air Filter (3-Pack) in the Air Filters department at Lowes.com Filtrete 12-in W x 36-in L x 1-in MERV 5 Basic Pleated Air Filter (3-Pack) in the Air Filters department at Lowes.com](https://mobileimages.lowes.com/productimages/7c3935d2-8d68-4c8c-b009-a02f7498d52d/65752974.jpg?size=pdhism)
Filtrete 12-in W x 36-in L x 1-in MERV 5 Basic Pleated Air Filter (3-Pack) in the Air Filters department at Lowes.com
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Filtrete 12x36x1 Air Filter MPR 1000 MERV 11, Allergen Defense, 6-Pack (exact dimensions 11.69x35.69x0.81) - Amazon.com
![3M Filtrete Allergen Defense 12 in x 36 in x 1 in 9814DC-6 MERV 11, 1000 MPR Air Filter | RSHughes.com 3M Filtrete Allergen Defense 12 in x 36 in x 1 in 9814DC-6 MERV 11, 1000 MPR Air Filter | RSHughes.com](https://static.rshughes.com/wm/p/wm-350-350-ww/135b985b66a6af41842a6fe06b6667ac30012c98.jpg?uf=Picture-Of-3M-7100188266-Filtrete-Allergen-Defense-Air-Filter)