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20x20x4 Furnace Filter 20 x 20 x 3 3/4" MERV 8 Filters. Case of 6
In Stock
20x20x4 Furnace Filter 20 x 20 x 3.68" MERV 11 Filters. Case of 6
20x20x4 Furnace Filter 20 x 20 x 3.68" MERV 11 Rated Pleated Filters. Case of 4
20x20x4 Furnace Filter 20 x 20 x 3.68" MERV 8 Rated Pleated Filters. Case of 4
Aerostar 20x20x4 MERV 13 Pleated Filter - Actual Size : 19-1/2 x 19-1/2 x 3-3/4 Inches - Case of 4
Clean Comfort AMP-M1-1056 Furnace Filter MERV 11 Efficiency. Actual Size 15 3/8" x 25 1/2" x 5 1/4." Case of 3
Generic Honeywell 20x20x4 Furnace Filter Model # FC100A1011 MERV 13. Actual Size 19 15/16" x 19 3/4" x 4 3/8." Case of 3
Honeywell 20x20x4 Electronic Air Cleaners Retrofit to 20x20 Media Air Cleaner. Part # FC100A1011. Package of 3.
Honeywell 20x20x4 Furnace Filter Model # FC100A1011 MERV 10. Actual Size 19 15/16" x 19 3/4" x 4 3/8" Aftermarket. Case of 3
Honeywell 20x20x4 Furnace Filter Model # FC100A1011 MERV 11. Actual Size 19 15/16" x 19 3/4" x 4 3/8." Case of 3
Honeywell FC100A1011 - 20x20x4 Reusable Filter Frame Kit - Includes Lifetime Reusable Frame MODEL # RFFS 885 and 3 Replacement Filters PART # PP-885 MERV 11. Made by FurnaceFilters.Ca
Honeywell FC100A1011 - 20x20x4 Reusable Filter Frame Kit - Includes Lifetime Reusable Frame MODEL # RFFS 885 and 6 Replacement Filters PART # PP-885 MERV 11. Made by FurnaceFilters.Ca
