![Filtrete 20-in W x 36-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 20-in W x 36-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/54e2ac11-d63f-4971-b485-af7570819b12/63647197.jpg?size=pdhism)
Filtrete 20-in W x 36-in L x 1-in MERV 11 1085 MPR Allergen Defense Extra Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com
![Filter King Air Filters 18x36x1 4-PACK | MERV 8 HVAC Pleated AC Furnace Filters | Air Purifier | Replacement Filters for Clean, Healthy & Fresh Environment | MADE IN USA - Amazon.com Filter King Air Filters 18x36x1 4-PACK | MERV 8 HVAC Pleated AC Furnace Filters | Air Purifier | Replacement Filters for Clean, Healthy & Fresh Environment | MADE IN USA - Amazon.com](https://m.media-amazon.com/images/I/51gc82bKqXL._AC_.jpg)
Filter King Air Filters 18x36x1 4-PACK | MERV 8 HVAC Pleated AC Furnace Filters | Air Purifier | Replacement Filters for Clean, Healthy & Fresh Environment | MADE IN USA - Amazon.com
![AAF/Flanders 10055..011836 18" x 36" x 1" EZ Flow II Fiberglass Disposable Furnace Filter MERV 4 - Case of 12 - Walmart.com AAF/Flanders 10055..011836 18" x 36" x 1" EZ Flow II Fiberglass Disposable Furnace Filter MERV 4 - Case of 12 - Walmart.com](https://i5.walmartimages.com/asr/0dbff4d6-9f11-4cd6-9113-ea0c8132f5ab.6490ac23acee7f024281c737d9b76088.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
AAF/Flanders 10055..011836 18" x 36" x 1" EZ Flow II Fiberglass Disposable Furnace Filter MERV 4 - Case of 12 - Walmart.com
![HDX 18 in. x 36 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011836 - The Home Depot HDX 18 in. x 36 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011836 - The Home Depot](https://images.thdstatic.com/productImages/49eff1f2-9a9b-4d5b-b5df-6a49e441247f/svn/hdx-air-filters-hdx1p5-011836-66_600.jpg)
HDX 18 in. x 36 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011836 - The Home Depot
![Filtrete 18-in W x 36-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com Filtrete 18-in W x 36-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com](https://mobileimages.lowes.com/productimages/fe0b48bc-38dc-497c-93ef-ada7ebe5a2d2/61154021.jpg)
Filtrete 18-in W x 36-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com
![Filtrete 18-in W x 36-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com Filtrete 18-in W x 36-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com](https://mobileimages.lowes.com/productimages/0232ae0b-893c-4793-8843-04648f5ba0bd/65753001.jpg)
Filtrete 18-in W x 36-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com
![HDX Dust and Pollen Medium Efficiency 18 X 36 X 1 Standard White Pleated Air Filter FPR 5 - Walmart.com HDX Dust and Pollen Medium Efficiency 18 X 36 X 1 Standard White Pleated Air Filter FPR 5 - Walmart.com](https://i5.walmartimages.com/seo/HDX-Dust-and-Pollen-Medium-Efficiency-18-X-36-X-1-Standard-White-Pleated-Air-Filter-FPR-5_298605e2-8150-48e2-aefd-47bcf1ade49a.d34ae3ba7195fd55a95da64dcb4b973a.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
HDX Dust and Pollen Medium Efficiency 18 X 36 X 1 Standard White Pleated Air Filter FPR 5 - Walmart.com
![Filterbuy 18x36x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 35.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com Filterbuy 18x36x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 35.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com](https://m.media-amazon.com/images/I/812MJhtevjL.jpg)
Filterbuy 18x36x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 35.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com
![HDX 18 in. x 36 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011836 - The Home Depot HDX 18 in. x 36 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011836 - The Home Depot](https://images.thdstatic.com/productImages/ff1a31e3-a78a-4a7e-94ac-ffa7511ea09d/svn/hdx-air-filters-hdx1p5-011836-e1_600.jpg)
HDX 18 in. x 36 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011836 - The Home Depot
![18 x 36 x 1 Permanent Washable Electrostatic HVAC Furnace Air Filter, MERV 8, Allergen & Dust Reduction - Amazon.com 18 x 36 x 1 Permanent Washable Electrostatic HVAC Furnace Air Filter, MERV 8, Allergen & Dust Reduction - Amazon.com](https://m.media-amazon.com/images/I/71fQX5YpYGL.jpg)
18 x 36 x 1 Permanent Washable Electrostatic HVAC Furnace Air Filter, MERV 8, Allergen & Dust Reduction - Amazon.com
![Filter King Air Filters 17.5x35.5x1 | 6-Pack | MERV 11 HVAC Pleated AC Furnace Filters | Actual Size 18 x 36 x .75" - Amazon.com Filter King Air Filters 17.5x35.5x1 | 6-Pack | MERV 11 HVAC Pleated AC Furnace Filters | Actual Size 18 x 36 x .75" - Amazon.com](https://m.media-amazon.com/images/I/51hhMOmijmL._AC_UF894,1000_QL80_.jpg)
Filter King Air Filters 17.5x35.5x1 | 6-Pack | MERV 11 HVAC Pleated AC Furnace Filters | Actual Size 18 x 36 x .75" - Amazon.com
![Filter King Air Filters 18x36x1 | 6-Pack | MERV 11 HVAC Pleated AC Furnace Filters | Actual Size 18 x 36 x .75" - Amazon.com Filter King Air Filters 18x36x1 | 6-Pack | MERV 11 HVAC Pleated AC Furnace Filters | Actual Size 18 x 36 x .75" - Amazon.com](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71m8mKjAdZL.jpg)
Filter King Air Filters 18x36x1 | 6-Pack | MERV 11 HVAC Pleated AC Furnace Filters | Actual Size 18 x 36 x .75" - Amazon.com
![HDX 18 in. x 36 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-011836 - The Home Depot HDX 18 in. x 36 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-011836 - The Home Depot](https://images.thdstatic.com/productImages/91bf01e2-90db-4a28-ac3d-ea1999568f53/svn/hdx-air-filters-hdx1p9-011836-e1_600.jpg)
HDX 18 in. x 36 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-011836 - The Home Depot
![HDX 18 in. x 36 in. x 1 in. Premium Pleated Air Filter FPR 10, MERV 13 HDX1P10-011836 - The Home Depot HDX 18 in. x 36 in. x 1 in. Premium Pleated Air Filter FPR 10, MERV 13 HDX1P10-011836 - The Home Depot](https://images.thdstatic.com/productImages/194421f9-2217-41b9-9d50-517026b2c146/svn/hdx-air-filters-hdx1p10-011836-64_600.jpg)
HDX 18 in. x 36 in. x 1 in. Premium Pleated Air Filter FPR 10, MERV 13 HDX1P10-011836 - The Home Depot
![20" X 36 Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 22.5 X 37.75] - Amazon.com 20" X 36 Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 22.5 X 37.75] - Amazon.com](https://m.media-amazon.com/images/I/81GMjapEKlL.jpg)
20" X 36 Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - HVAC Duct Cover - Flat Stamped Face - White [Outer Dimensions: 22.5 X 37.75] - Amazon.com
![36" X 18 Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - Flat Stamped Face - White [Outer Dimensions: 38.5 X 19.75] - Amazon.com 36" X 18 Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - Flat Stamped Face - White [Outer Dimensions: 38.5 X 19.75] - Amazon.com](https://m.media-amazon.com/images/I/81r0XFq2wwL.jpg)
36" X 18 Steel Return Air Filter Grille for 1" Filter - Removable Face/Door - Flat Stamped Face - White [Outer Dimensions: 38.5 X 19.75] - Amazon.com
![HDX 20 in. x 24 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-012024 - The Home Depot HDX 20 in. x 24 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-012024 - The Home Depot](https://images.thdstatic.com/productImages/f2cea0cf-ce22-4780-98d7-15f9af00d1e6/svn/hdx-air-filters-hdx1p9-012024-64_600.jpg)