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  6. Furnace Filters - 522 items
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Aerostar 20x25x1 MERV 6 Pleated Air Filter, AC Furnace Air Filter, 6 Pack (Actual Size: 19 3/4"x24 3/4"x3/4")
$ 107.10 $ 107.10 107.1 USD (0% OFF)
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300 x 12 inch Air Vent Filters Polyester Floor Vent Filter Cut to Fit Dust Control Replacement Roll Material for HVAC Ac Heating RV's Mobile Homes Floor Registers
$ 43.98 $ 43.98 43.98 USD (0% OFF)
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Filterbuy 14x30x2 Air Filter MERV 13 Optimal Smoke & Allergy Defense (6-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 13.50 x 29.50 x 1.75)
$ 300.77 $ 300.77 300.77 USD (0% OFF)
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MervKing 20x25x1 Air Filter Actual Size: 19.7" x 24.7" x 0.75" MERV 11 MPR 1000-1200 | MADE IN USA | 6-Pack | Pleated HVAC AC Furnace Replacement
$ 136.38 $ 136.38 136.38 USD (0% OFF)
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Filterbuy 16x20x1 Air Filter MERV 8 Essential Dust & Allergy Defense (4-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 15.50 x 19.50 x 0.75)
$ 81.31 $ 81.31 81.31 USD (0% OFF)
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Filtrete 16x25x1 Air Filter, MERV 12, MPR 1500, 2 HVAC Filters
$ 69.01 $ 69.01 69.01 USD (0% OFF)
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VENTS-US MERV 8 Filter for TwinFresh Expert Ventilation Fans with Plastic Bracket - 150x50mm
$ 88.00 $ 88.00 88.0 USD (0% OFF)
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201 Replacement Filter MERV 13 Compatible with Aprilaire 2200, 2250, Space Gard 2200 Whole House Air Cleaner Purifiers and Lennox PMAC-20C (Lennox X0445), MERV-13 Air Filter, 2-Pack
$ 85.79 $ 85.79 85.79 USD (0% OFF)
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Aerostar Air Filter 18x20x1 MERV 8 AC Filter, HVAC, Furnace Filter, 6 Pack
$ 50.00 $ 50.00 50.0 USD (0% OFF)
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Honeywell FC100A1037 Ultra Efficiency Air Cleaning Filter, 20X25-Inches (MERV-11)
$ 142.67 $ 142.67 142.67 USD (0% OFF)
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Genuine AprilAire 213 Replacement Filter for AprilAire Whole-House Air Purifiers - MERV 13, Healthy Home Allergy, 20x25x4 Air Filter (Pack of 1)
$ 78.91 $ 78.91 78.91 USD (0% OFF)
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Filtrete 20x30x1 AC Furnace Air Filter, MERV 8, MPR 700, Tough on Pollen, Easy on Airflow, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 4-Pack (Actual Size 19.880 x 29.880 x 0.8125 in)
$ 101.88 $ 101.88 101.88 USD (0% OFF)
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Filtrete 20x25x5 Air Filter, MERV 8, MPR 700, 2 HVAC Filters
$ 77.61 $ 77.61 77.61 USD (0% OFF)
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Aerostar 21.5x23.3125x1 MERV 8-6 Count - High Efficiency Pleated HVAC, Furnace & Air Conditioner Filters - Removes Dust, Lint, Mold & Allergy-Causing Pollen
$ 109.62 $ 109.62 109.62 USD (0% OFF)
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VENTS-US MERV 8 Filter for TwinFresh Comfo Ventilation Fan - 150x150mm
$ 96.80 $ 96.80 96.8 USD (0% OFF)
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Filtrete 16x25x1 Air Filter, MPR 2800, MERV 14, Healthy Living Ultrafine Particle Reduction 3-Month Pleated 1-Inch Air Filters, 2 Filters, White
$ 154.23 $ 154.23 154.23 USD (0% OFF)
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Nordic Pure 20x20x4 (19_1/2 x 19_1/2 x 3_5/8) Pleated MERV 12 Air Filters 2 Pack
$ 67.91 $ 67.91 67.91 USD (0% OFF)
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Filterbuy 27x27x4 Air Filter MERV 13 Optimal Smoke & Allergy Defense (2-Pack), Electrostatic Pleated HVAC AC Furnace Filters Replacement, Made in USA (Actual Size: 26.50 x 26.50 x 3.63)
$ 228.25 $ 228.25 228.25 USD (0% OFF)
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2-Pack 210 Filter Replacement Compatible with AprilAire 210 Whole House Air Purifiers Models,1210,1620,2210,2216,3210,4200,MERV 11 Furnace Filter Replacement,fit for 20x25x4 Furnace
$ 195.17 $ 195.17 195.17 USD (0% OFF)
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Nordic Pure 20x20x5 (19_5/8 x 19_7/8 x 4_3/8) Honeywell/Lennox Replacement MERV 12 Air Filter 1 Pack
$ 70.38 $ 70.38 70.38 USD (0% OFF)
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