![20x30x1 Glasfloss Fiberglass Air Filter, Double Strut, GDS Series, Made in USA, Actual Size: 19 5/8 x 29 5/8 x 3/4 (Box of 6) - Amazon.com 20x30x1 Glasfloss Fiberglass Air Filter, Double Strut, GDS Series, Made in USA, Actual Size: 19 5/8 x 29 5/8 x 3/4 (Box of 6) - Amazon.com](https://m.media-amazon.com/images/I/71CAMRX-lCL._AC_UF894,1000_QL80_.jpg)
20x30x1 Glasfloss Fiberglass Air Filter, Double Strut, GDS Series, Made in USA, Actual Size: 19 5/8 x 29 5/8 x 3/4 (Box of 6) - Amazon.com
![Amazon.com: 20x30x1 Air Filter Comparable to MPR 100 Basic Economy Furnace Filters, 12 Pack of Non Pleated Fiberglass Filter For Dust - Low Airflow Restriction! From AIRX FILTERS WICKED CLEAN AIR. : Everything Else Amazon.com: 20x30x1 Air Filter Comparable to MPR 100 Basic Economy Furnace Filters, 12 Pack of Non Pleated Fiberglass Filter For Dust - Low Airflow Restriction! From AIRX FILTERS WICKED CLEAN AIR. : Everything Else](https://m.media-amazon.com/images/I/61W6wl5rKCL.jpg)
Amazon.com: 20x30x1 Air Filter Comparable to MPR 100 Basic Economy Furnace Filters, 12 Pack of Non Pleated Fiberglass Filter For Dust - Low Airflow Restriction! From AIRX FILTERS WICKED CLEAN AIR. : Everything Else
![20x30x1 Air Filter (6-PACK) | MERV 8 | MOAJ Advanced Dust Defense | BASED IN USA | Quality Pleated Replacement Air Filters for AC & Furnace Applications | Actual Dimensions: 19.70" x 29.70" x 0.75" - Walmart.com 20x30x1 Air Filter (6-PACK) | MERV 8 | MOAJ Advanced Dust Defense | BASED IN USA | Quality Pleated Replacement Air Filters for AC & Furnace Applications | Actual Dimensions: 19.70" x 29.70" x 0.75" - Walmart.com](https://i5.walmartimages.com/asr/64bf361e-e262-459a-8cf3-d514cd790a10.f905b71aeb43f2709df65d5f92aaf593.jpeg)
20x30x1 Air Filter (6-PACK) | MERV 8 | MOAJ Advanced Dust Defense | BASED IN USA | Quality Pleated Replacement Air Filters for AC & Furnace Applications | Actual Dimensions: 19.70" x 29.70" x 0.75" - Walmart.com
![LotFancy 20x30x1 Air Filters, MERV 11 AC Furnace Filters, 6 Pack Pleated Air Conditioner HVAC Filters (Actual Size: 19.75 x 29.75 x 0.75 Inches) - Amazon.com LotFancy 20x30x1 Air Filters, MERV 11 AC Furnace Filters, 6 Pack Pleated Air Conditioner HVAC Filters (Actual Size: 19.75 x 29.75 x 0.75 Inches) - Amazon.com](https://m.media-amazon.com/images/I/713bzFeTkFL.jpg)
LotFancy 20x30x1 Air Filters, MERV 11 AC Furnace Filters, 6 Pack Pleated Air Conditioner HVAC Filters (Actual Size: 19.75 x 29.75 x 0.75 Inches) - Amazon.com
![20x30x1 Glasfloss Fiberglass Air Filter, Double Strut, GDS Series, Made in USA, Actual Size: 19 5/8 x 29 5/8 x 3/4 (Box of 6) - Amazon.com 20x30x1 Glasfloss Fiberglass Air Filter, Double Strut, GDS Series, Made in USA, Actual Size: 19 5/8 x 29 5/8 x 3/4 (Box of 6) - Amazon.com](https://m.media-amazon.com/images/I/71CAMRX-lCL.jpg)
20x30x1 Glasfloss Fiberglass Air Filter, Double Strut, GDS Series, Made in USA, Actual Size: 19 5/8 x 29 5/8 x 3/4 (Box of 6) - Amazon.com
20x30x1 Nominal Filter Size, Polyester-Coated Fiberglass, Non-Pleated Air Filter - 3DVN2|3DVN2 - Grainger
![AAF Flanders "20 x 30 x 1 Nested Fiberglass Air Filter MERV 1 (4-pack)" 10057.012030 - The Home Depot AAF Flanders "20 x 30 x 1 Nested Fiberglass Air Filter MERV 1 (4-pack)" 10057.012030 - The Home Depot](https://images.thdstatic.com/productImages/dc64e49c-08c6-40bf-b90e-aad00601b3c0/svn/aaf-flanders-air-filters-10057-012030-64_600.jpg)