- $38.9820 x 25 x 5 Pleated Furnace Air Filter FPR 8, MERV 10The Home Depot
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- $48.99Filter King 4x27x1a A/C Furnace Filter 4-PACK MERV 8 Actual Size: 4 x 27 x .75"Wayfair
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- SALEUBeesize 20x20x1 Reusable Air Filter - Washable, MERV 8,Permanent, Electrostatic - Lasts a Lifetime - Enjoy Fresher Air in Home and Office HVAC AC Furnace Systems (Actual Size: 19.75x19.75x0.86 Inch)Amazon・Sale
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