![Filtrete 18-in W x 20-in L x 1-in 11 MERV 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 11 MERV 1085 MPR Allergen Defense Extra Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com](https://mobileimages.lowes.com/productimages/811b13e6-6b5c-49f3-ab98-4e8a763c98d2/63647282.jpg)
Filtrete 18-in W x 20-in L x 1-in 11 MERV 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. 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/9aec4290-da5e-40b9-8bf4-604341ca1ed9/svn/hdx-air-filters-hdx3p5-011820-64_1000.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
![Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (12-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 19.50 x 0.75 Inches) : Amazon.ca: Home Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (12-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 19.50 x 0.75 Inches) : Amazon.ca: Home](https://m.media-amazon.com/images/I/71qH3-uMIZL.jpg)
Filterbuy 18x20x1 Air Filter MERV 8 Dust Defense (12-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 17.50 x 19.50 x 0.75 Inches) : Amazon.ca: Home
![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) : Amazon.ca: Tools & Home Improvement 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) : Amazon.ca: Tools & Home Improvement](https://m.media-amazon.com/images/I/81yDnH8Sr-L.jpg)
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) : Amazon.ca: Tools & Home Improvement
![Filtrete 18-in W x 20-in L x 1-in 11 MERV 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 11 MERV 1085 MPR Allergen Defense Extra Electrostatic Pleated Air Filter in the Air Filters department at Lowes.com](https://mobileimages.lowes.com/productimages/24ee961e-26f6-45a9-ae4f-690268536666/63647286.jpg?size=mpdhi)
Filtrete 18-in W x 20-in L x 1-in 11 MERV 1085 MPR Allergen Defense Extra Electrostatic Pleated Air Filter in the Air Filters department at Lowes.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) : Amazon.ca: Tools & Home Improvement 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) : Amazon.ca: Tools & Home Improvement](https://m.media-amazon.com/images/I/719CdObbcoL._AC_UF350,350_QL80_.jpg)
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) : Amazon.ca: Tools & Home Improvement
![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) : Amazon.ca: Tools & Home Improvement 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) : Amazon.ca: Tools & Home Improvement](https://m.media-amazon.com/images/I/71QoB2YZ3aL._AC_UF894,1000_QL80_.jpg)