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12x24x2, Furnace Filter
BestAir® Pro 2″ Series 12X24 MERV 8
BA2-1224-8 | BestAir® 12 x 24 x 2, Air Cleaning Furnace Filter, MERV 8, Removes Allergens & Contaminants, For 2″ HVAC Pleated Filter
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16x28x4, Furnace Filter
SpaceGard 16x28x4 MERV 13
AXP-413-13R-2 | BestAir® 16 x 28 x 4, Air Cleaning Furnace Filter, MERV 13, For Aprilaire/SpaceGard 2400 (401) & Lennox PMAC-12C 27″
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16x28x4, Furnace Filter
SpaceGard Box 16x28x4 MERV 13
SG413-BOX-13R | BestAir® 16 x 28 x 4, Air Cleaning Furnace Filter, MERV 13, Removes Allergens & Contaminants, For Aprilaire/SpaceGard Models