![Where is the filter supposed to go? This is my dads furnace and he's not even sure since none fit well… I decided to use a 16x24 and shimmed it up with Where is the filter supposed to go? This is my dads furnace and he's not even sure since none fit well… I decided to use a 16x24 and shimmed it up with](https://i.redd.it/where-is-the-filter-supposed-to-go-this-is-my-dads-furnace-v0-08wsi1yxozw91.jpg?width=3024&format=pjpg&auto=webp&s=788ac8d58c91c5ef9d9e47b7d8b5113b7a1d0e50)
Where is the filter supposed to go? This is my dads furnace and he's not even sure since none fit well… I decided to use a 16x24 and shimmed it up with
![HDX 16 in. x 24 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-011624 - The Home Depot HDX 16 in. x 24 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-011624 - The Home Depot](https://images.thdstatic.com/productImages/f5a2d88f-688b-437e-9154-0e4af02f2229/svn/hdx-air-filters-hdx1p9-011624-64_1000.jpg)
HDX 16 in. x 24 in. x 1 in. Superior Pleated Air Filter FPR 9, MERV 12 HDX1P9-011624 - The Home Depot
![AAF Flanders 16 x 24 x 2 Pre-Pleat 40 Pleated MERV 8 air filter; (12-Pack) 80055.021624 - The Home Depot AAF Flanders 16 x 24 x 2 Pre-Pleat 40 Pleated MERV 8 air filter; (12-Pack) 80055.021624 - The Home Depot](https://images.thdstatic.com/productImages/41ee704d-12c0-4503-a764-54890ce10ded/svn/aaf-flanders-air-filters-80055-021624-e1_600.jpg)
AAF Flanders 16 x 24 x 2 Pre-Pleat 40 Pleated MERV 8 air filter; (12-Pack) 80055.021624 - The Home Depot
3M 2025DC-4-4 Filtrete 2025DC-4 16x24 x 1 In. Ultra Allergen Pleated Furnace Air Filter, MPR 1500, 3 Months, Purple
![16" x 24" x 2" MERV8 Pleated Furnace Air Filters - Actual Size: 15-3/8" x 23-3/8" x 1-3/4", Case of (12): Amazon.com: Tools & Home Improvement 16" x 24" x 2" MERV8 Pleated Furnace Air Filters - Actual Size: 15-3/8" x 23-3/8" x 1-3/4", Case of (12): Amazon.com: Tools & Home Improvement](https://m.media-amazon.com/images/I/41LwpgadK7L._AC_UF1000,1000_QL80_.jpg)
16" x 24" x 2" MERV8 Pleated Furnace Air Filters - Actual Size: 15-3/8" x 23-3/8" x 1-3/4", Case of (12): Amazon.com: Tools & Home Improvement
![Nordic Pure 16x24x1 (15 1/2 x 23 1/2 x 3/4) Pleated MERV 13 Air Filters 6 Pack - Replacement Furnace Filters - Amazon.com Nordic Pure 16x24x1 (15 1/2 x 23 1/2 x 3/4) Pleated MERV 13 Air Filters 6 Pack - Replacement Furnace Filters - Amazon.com](https://m.media-amazon.com/images/I/718DhbAcHWL._AC_UF894,1000_QL80_.jpg)
Nordic Pure 16x24x1 (15 1/2 x 23 1/2 x 3/4) Pleated MERV 13 Air Filters 6 Pack - Replacement Furnace Filters - Amazon.com
![Filterbuy 16x24x1 Air Filter MERV 11 Allergen Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.38 x 23.38 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com Filterbuy 16x24x1 Air Filter MERV 11 Allergen Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.38 x 23.38 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com](https://m.media-amazon.com/images/I/81zS-OtP3KL._AC_UF894,1000_QL80_.jpg)
Filterbuy 16x24x1 Air Filter MERV 11 Allergen Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.38 x 23.38 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com
![Nordic Pure 16x24x1 MERV 7 Pleated AC Furnace Air Filters 6 Pack - Replacement Furnace Filters - Amazon.com Nordic Pure 16x24x1 MERV 7 Pleated AC Furnace Air Filters 6 Pack - Replacement Furnace Filters - Amazon.com](https://m.media-amazon.com/images/I/51m9de5k2yL._SY350_PKmb-play-button-overlay_.jpg)
Nordic Pure 16x24x1 MERV 7 Pleated AC Furnace Air Filters 6 Pack - Replacement Furnace Filters - Amazon.com
![HDX 16 in. x 24 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011624 - The Home Depot HDX 16 in. x 24 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011624 - The Home Depot](https://images.thdstatic.com/productImages/2b13b094-0bfd-4a53-a842-66cbc88008c0/svn/hdx-air-filters-hdx1p5-011624-64_600.jpg)
HDX 16 in. x 24 in. x 1 in. Standard Pleated Air Filter FPR 5, MERV 8 HDX1P5-011624 - The Home Depot
![HDX 16 in. x 24 in. x 1 in. Standard Pleated Furnace Air Filter FPR 5, MERV 8 (3-Pack) HDX3P5-011624 - The Home Depot HDX 16 in. x 24 in. x 1 in. Standard Pleated Furnace Air Filter FPR 5, MERV 8 (3-Pack) HDX3P5-011624 - The Home Depot](https://images.thdstatic.com/productImages/8bc60680-cba0-4ccf-aacb-34cb390c7b14/svn/hdx-air-filters-hdx3p5-011624-64_600.jpg)
HDX 16 in. x 24 in. x 1 in. Standard Pleated Furnace Air Filter FPR 5, MERV 8 (3-Pack) HDX3P5-011624 - The Home Depot
![AAF Flanders 16 x 24 x 2 Pre-Pleat 40 Pleated MERV 8 air filter; (12-Pack) 80055.021624 - The Home Depot AAF Flanders 16 x 24 x 2 Pre-Pleat 40 Pleated MERV 8 air filter; (12-Pack) 80055.021624 - The Home Depot](https://images.thdstatic.com/productImages/b50ca00c-09fb-427e-bb27-0ea2d848c96b/svn/aaf-flanders-air-filters-80055-021624-64_600.jpg)
AAF Flanders 16 x 24 x 2 Pre-Pleat 40 Pleated MERV 8 air filter; (12-Pack) 80055.021624 - The Home Depot
![K&N 16-in W x 24-in L x 1-in Washable MERV 11 Pleated Air Filter in the Air Filters department at Lowes.com K&N 16-in W x 24-in L x 1-in Washable MERV 11 Pleated Air Filter in the Air Filters department at Lowes.com](https://mobileimages.lowes.com/productimages/85b688c3-9f1a-46f6-ad46-061d2904bd3f/44570766.jpg)
K&N 16-in W x 24-in L x 1-in Washable MERV 11 Pleated Air Filter in the Air Filters department at Lowes.com
![Filterbuy 16x24x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.38 x 23.38 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com Filterbuy 16x24x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 15.38 x 23.38 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com](https://m.media-amazon.com/images/I/81JxbIu-8cL._AC_UF894,1000_QL80_.jpg)