![20x23x1 AC/Furnace Air Filter (Made by American Filter Company™) Made in U.S.A – American Filter Company 20x23x1 AC/Furnace Air Filter (Made by American Filter Company™) Made in U.S.A – American Filter Company](https://www.americanfiltercompany.com/wp-content/uploads/furnace-hvac-filters/Merv11/Merv11_20x23x1_2p_1inch_NP.jpg)
20x23x1 AC/Furnace Air Filter (Made by American Filter Company™) Made in U.S.A – American Filter Company
![Filterbuy 20x23x1 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 22.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com Filterbuy 20x23x1 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 22.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com](https://images-na.ssl-images-amazon.com/images/W/MEDIAX_792452-T2/images/I/81eO2LilbNL._AC_UL600_SR600,600_.jpg)
Filterbuy 20x23x1 Air Filter MERV 11 Allergen Defense (2-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 22.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com
![Aerostar 20x23x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 7/8" x 22 7/8" x 3/4") - Amazon.com Aerostar 20x23x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 7/8" x 22 7/8" x 3/4") - Amazon.com](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/511tywlkPBL._AC_.jpg)
Aerostar 20x23x1 MERV 8 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 7/8" x 22 7/8" x 3/4") - Amazon.com
![Filterbuy 20x23x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 22.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com Filterbuy 20x23x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 22.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/51U4-mE8jNL._AC_.jpg)
Filterbuy 20x23x1 Air Filter MERV 8 Dust Defense (4-Pack), Pleated HVAC AC Furnace Air Filters Replacement (Actual Size: 19.50 x 22.50 x 0.75 Inches) - Replacement Furnace Filters - Amazon.com
![20x23x1 MERV 8 ( MPR 600, FPR 5-6 ) 1" Air Filters for AC & Furnace. 4 Pack. Exact Size: 19-1/2 x 22-1/2 x 3/4 - Walmart.com 20x23x1 MERV 8 ( MPR 600, FPR 5-6 ) 1" Air Filters for AC & Furnace. 4 Pack. Exact Size: 19-1/2 x 22-1/2 x 3/4 - Walmart.com](https://i5.walmartimages.com/seo/20x23x1-MERV-8-MPR-600-FPR-5-6-1-Air-Filters-for-AC-Furnace-4-Pack-Exact-Size-19-1-2-x-22-1-2-x-3-4_fd5976fe-2e11-42cd-944b-0fc1119c9864.c07c568e0eb1849be23ab736bf5b6e37.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
20x23x1 MERV 8 ( MPR 600, FPR 5-6 ) 1" Air Filters for AC & Furnace. 4 Pack. Exact Size: 19-1/2 x 22-1/2 x 3/4 - Walmart.com
![20x23x1 Electrostatic Washable Permanent A/C Furnace Air Filter (19.5 x 22.5 x 1 EXACT SIZE) - Amazon.com 20x23x1 Electrostatic Washable Permanent A/C Furnace Air Filter (19.5 x 22.5 x 1 EXACT SIZE) - Amazon.com](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/91igQwVP5OL._AC_UF894,1000_QL80_.jpg)
20x23x1 Electrostatic Washable Permanent A/C Furnace Air Filter (19.5 x 22.5 x 1 EXACT SIZE) - Amazon.com
![BNX TruFilter 20x23x1 Air Filter MERV 13 (6-Pack) - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters for Allergies, Pollen, Mold, Bacteria, Smoke, Allergen, MPR 1900 FPR 10 - Amazon.com BNX TruFilter 20x23x1 Air Filter MERV 13 (6-Pack) - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters for Allergies, Pollen, Mold, Bacteria, Smoke, Allergen, MPR 1900 FPR 10 - Amazon.com](https://m.media-amazon.com/images/W/MEDIAX_792452-T2/images/I/71C+aGEwsoL._AC_UF894,1000_QL80_.jpg)
BNX TruFilter 20x23x1 Air Filter MERV 13 (6-Pack) - MADE IN USA - Electrostatic Pleated Air Conditioner HVAC AC Furnace Filters for Allergies, Pollen, Mold, Bacteria, Smoke, Allergen, MPR 1900 FPR 10 - Amazon.com
![20x23x1 AC/Furnace Air Filter (Made by American Filter Company™) Made in U.S.A – American Filter Company 20x23x1 AC/Furnace Air Filter (Made by American Filter Company™) Made in U.S.A – American Filter Company](https://www.americanfiltercompany.com/wp-content/uploads/furnace-hvac-filters/Merv8Odor/Merv8Odor_20x23x1_1p_1inch_NP.jpg)
20x23x1 AC/Furnace Air Filter (Made by American Filter Company™) Made in U.S.A – American Filter Company
![Goodman ALFH20231E Washable Filter 20x23x1 Size D Cabinets [ALFH20231E] : HVAC Parts Online, Heating and Air Conditioning Parts Goodman ALFH20231E Washable Filter 20x23x1 Size D Cabinets [ALFH20231E] : HVAC Parts Online, Heating and Air Conditioning Parts](https://hvac-parts-online.com/images/ALFH20231E.jpg)