![18x24x1 Glasfloss Fiberglass Air Filter, Double Strut, GDS Series, Made in USA, Actual Size: 17 5/8 x 23 5/8 x 3/4 (Box of 6) - Amazon.com 18x24x1 Glasfloss Fiberglass Air Filter, Double Strut, GDS Series, Made in USA, Actual Size: 17 5/8 x 23 5/8 x 3/4 (Box of 6) - Amazon.com](https://images-na.ssl-images-amazon.com/images/I/71CAMRX-lCL._AC_UL600_SR600,600_.jpg)
18x24x1 Glasfloss Fiberglass Air Filter, Double Strut, GDS Series, Made in USA, Actual Size: 17 5/8 x 23 5/8 x 3/4 (Box of 6) - Amazon.com
![Universal Pleated Air Filter 18x24 8 Merv 34207 | AC Pro Store | HVAC Equipment, Parts & Supplies for Contractors Universal Pleated Air Filter 18x24 8 Merv 34207 | AC Pro Store | HVAC Equipment, Parts & Supplies for Contractors](https://cdn.gateway.acpro.com/original/UNIVERSAL-PLEATED-AIR-FILTER-18X24X1-1_original.jpg)
Universal Pleated Air Filter 18x24 8 Merv 34207 | AC Pro Store | HVAC Equipment, Parts & Supplies for Contractors
![Flanders Precisionaire Merv 4 Heavy-Duty Flat-Panel Spun Glass Air Filter, 18X24X1 In., 12 Per Case - Walmart.com Flanders Precisionaire Merv 4 Heavy-Duty Flat-Panel Spun Glass Air Filter, 18X24X1 In., 12 Per Case - Walmart.com](https://i5.walmartimages.com/seo/Flanders-Precisionaire-Merv-4-Heavy-Duty-Flat-Panel-Spun-Glass-Air-Filter-18X24X1-In-12-Per-Case_636d25ab-de61-457d-a330-68bd63bcc48e.1544d4f919789b660845687266d27168.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Flanders Precisionaire Merv 4 Heavy-Duty Flat-Panel Spun Glass Air Filter, 18X24X1 In., 12 Per Case - Walmart.com
![HDX 18 in. x 24 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011824 - The Home Depot HDX 18 in. x 24 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011824 - The Home Depot](https://images.thdstatic.com/productImages/e3624bfc-71e2-4fc1-bb3e-5e5029e26435/svn/hdx-air-filters-hdx1p5-011824-64_1000.jpg)