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21 x 22 x 1


Glasfloss Z-Line MR-11 21 x 22 x 1 MERV 11 furnace filters are an inexpensive upgrade from standard pleated air filters and excel where similar HVAC filters (Heating, Ventilation & Air Conditioning) fall short. These MERV 11 air filters also offer an eco-friendly design and enhanced particle filtration. The air filter frame is constructed of [...]

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