![Amazon.com: Nordic Pure 18x18x1 (17 3/4 x 17 3/4 x 3/4) Furnace Air Filters MERV 10 Pleated Plus Carbon 6 Pack : Tools & Home Improvement Amazon.com: Nordic Pure 18x18x1 (17 3/4 x 17 3/4 x 3/4) Furnace Air Filters MERV 10 Pleated Plus Carbon 6 Pack : Tools & Home Improvement](https://m.media-amazon.com/images/I/71-FFgSK31L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Nordic Pure 18x18x1 (17 3/4 x 17 3/4 x 3/4) Furnace Air Filters MERV 10 Pleated Plus Carbon 6 Pack : Tools & Home Improvement
![Amazon.com: Nordic Pure 18x20x1 (17 1/2 x 19 1/2 x 3/4) Pleated Air Filters MERV 14 Plus Carbon 2 Pack : Tools & Home Improvement Amazon.com: Nordic Pure 18x20x1 (17 1/2 x 19 1/2 x 3/4) Pleated Air Filters MERV 14 Plus Carbon 2 Pack : Tools & Home Improvement](https://m.media-amazon.com/images/I/710vM0DKgVL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Nordic Pure 18x20x1 (17 1/2 x 19 1/2 x 3/4) Pleated Air Filters MERV 14 Plus Carbon 2 Pack : Tools & Home Improvement
![Filterbuy 17x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 16.50 x 24.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com Filterbuy 17x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 16.50 x 24.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com](https://m.media-amazon.com/images/I/81A46XKs7ZL.jpg)
Filterbuy 17x25x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 16.50 x 24.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com
![Filterbuy 17.5x21x5 Air Filter MERV 13, Pleated HVAC AC Furnace Filters Replacement for Rheem & Ruud | Wayfair Filterbuy 17.5x21x5 Air Filter MERV 13, Pleated HVAC AC Furnace Filters Replacement for Rheem & Ruud | Wayfair](https://assets.wfcdn.com/im/47538194/resize-h755-w755%5Ecompr-r85/2167/216791694/Filterbuy+17.5x21x5+Air+Filter+MERV+13%2C+Pleated+HVAC+AC+Furnace+Filters+Replacement+for+Rheem+%26+Ruud.jpg)
Filterbuy 17.5x21x5 Air Filter MERV 13, Pleated HVAC AC Furnace Filters Replacement for Rheem & Ruud | Wayfair
![Filtrete 17-in W x 21-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com Filtrete 17-in W x 21-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com](https://mobileimages.lowes.com/productimages/308a5664-42bb-4498-a666-6a8747390558/65752992.jpg)
Filtrete 17-in W x 21-in L x 1-in MERV 5 Basic Pleated Air Filter in the Air Filters department at Lowes.com
![Filter King 17x17x1 Air Filter | 6-PACK | MERV 8 HVAC Pleated AC Furnace Filters | Actual Size 17 x 17 x .75" - Amazon.com Filter King 17x17x1 Air Filter | 6-PACK | MERV 8 HVAC Pleated AC Furnace Filters | Actual Size 17 x 17 x .75" - Amazon.com](https://m.media-amazon.com/images/I/61P-VsnXSJL._AC_UF894,1000_QL80_.jpg)
Filter King 17x17x1 Air Filter | 6-PACK | MERV 8 HVAC Pleated AC Furnace Filters | Actual Size 17 x 17 x .75" - Amazon.com
![Nordic Pure 17x17x1ExactCustomM7+C-6 MERV 7 + Carbon AC Furnace Filters, 17 x 17 x 3/4 (17 x 17 x 0.75), 6 Piece - Replacement Furnace Filters - Amazon.com Nordic Pure 17x17x1ExactCustomM7+C-6 MERV 7 + Carbon AC Furnace Filters, 17 x 17 x 3/4 (17 x 17 x 0.75), 6 Piece - Replacement Furnace Filters - Amazon.com](https://m.media-amazon.com/images/I/61D3kfazk5L._AC_UF894,1000_QL80_.jpg)
Nordic Pure 17x17x1ExactCustomM7+C-6 MERV 7 + Carbon AC Furnace Filters, 17 x 17 x 3/4 (17 x 17 x 0.75), 6 Piece - Replacement Furnace Filters - Amazon.com
![Nordic Pure 18x25x1 (17 1/2 x 24 1/2 x 3/4) Pleated MERV 8 Air Filters 6 Pack - Replacement Furnace Filters - Amazon.com Nordic Pure 18x25x1 (17 1/2 x 24 1/2 x 3/4) Pleated MERV 8 Air Filters 6 Pack - Replacement Furnace Filters - Amazon.com](https://m.media-amazon.com/images/I/71K4FnaiyFL._AC_UF894,1000_QL80_.jpg)
Nordic Pure 18x25x1 (17 1/2 x 24 1/2 x 3/4) Pleated MERV 8 Air Filters 6 Pack - Replacement Furnace Filters - Amazon.com
![BNX TruFilter 18x24x1 Air Filter MERV 13 (6-Pack) - MADE IN USA - Electrostatic Pleated Air Conditioner BNX TruFilter 18x24x1 Air Filter MERV 13 (6-Pack) - MADE IN USA - Electrostatic Pleated Air Conditioner](https://accumed.com/media/catalog/product/cache/4e7fa6f54771e42621058bba2933bf79/b/n/bn-m13s-18x24x1-6pp.png)
BNX TruFilter 18x24x1 Air Filter MERV 13 (6-Pack) - MADE IN USA - Electrostatic Pleated Air Conditioner
![Nordic Pure 17x17x1ExactCustomM8-6 MERV 8 AC Furnace Filters, 17 x 17 x 3/4 (17 x 17 x 0.75), 6 Piece - Replacement Furnace Filters - Amazon.com Nordic Pure 17x17x1ExactCustomM8-6 MERV 8 AC Furnace Filters, 17 x 17 x 3/4 (17 x 17 x 0.75), 6 Piece - Replacement Furnace Filters - Amazon.com](https://m.media-amazon.com/images/I/61HM-ZU+r9L._AC_UF894,1000_QL80_.jpg)
Nordic Pure 17x17x1ExactCustomM8-6 MERV 8 AC Furnace Filters, 17 x 17 x 3/4 (17 x 17 x 0.75), 6 Piece - Replacement Furnace Filters - Amazon.com
![Nordic Pure 17x17x1ExactCustomM10-6 MERV 10 Exact AC Furnace Filters, 17 x 17 x 1 in. - Pack of 6 - Walmart.com Nordic Pure 17x17x1ExactCustomM10-6 MERV 10 Exact AC Furnace Filters, 17 x 17 x 1 in. - Pack of 6 - Walmart.com](https://i5.walmartimages.com/seo/Nordic-Pure-17x17x1ExactCustomM10-6-MERV-10-Exact-AC-Furnace-Filters-44-17-x-17-x-1-in-Pack-of-6_9746e281-a7cc-4d6a-a98a-2507f5ce0616.5f6049ca2348cf377e95c4b464ac2501.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)