18x36x1 Tier1 Air Filter Replacement MERV 13 - (6-Pack)
AAF/Flanders 10055..011836 18" x 36" x 1" EZ Flow II Fiberglass Disposable Furnace Filter MERV 4 - Case of 12 - Walmart.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
18 x 36 inch HEPA-Grade Media Dust Collector FlameGuard Filter | Oneida Air Systems
Koch™ Multi-Pleat XL11 Air Filter, MERV 11, 18" x 36" x 1" - Pkg Qty 12
NaturalAire Standard Pleat Air Filter 84858.011836 18 x 36 x 1 MERV 8 | eBay
HDX 18 in. x 36 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011836 - 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
18" X 36" Steel Return Air Filter Grille for 1" Filter - Fixed Hinged - HVAC Premium
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. Premium Pleated Air Filter FPR 10, MERV 13 HDX1P10-011836 - 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
![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")
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 18 in. x 36 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011836 - The Home Depot
Dynamic C3P1836 18 x 36 Air Filter
18x36x1 Tier1 Air Filter Replacement MERV 13 - (6-Pack)
18x36x1 Tier1 Air Filter Replacement MERV 13 - (6-Pack)
A+2000 Washable Electrostatic Permanent Custom Air Filter - 18" x 36" – Any Kind Of Filter
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
HDX 18 in. x 36 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011836 - 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](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")
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
HDX 18 in. x 36 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011836 - The Home Depot
