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The Glasfloss MERV 10 Z-Line 21x24x1 Exact air filters excel at removing allergens and dust from the air, making your home’s air cleaner. We designed the sturdy frame using heavy-duty, moisture-resistant materials, including recycled content, to make it easy to install and remove from your HVAC system. The synthetic fibers in the filter media won’t [...]

Ships in 10-15 Business Days (Special Order)


Glasfloss Z-Line MR-11 21x24x1 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 heavy-duty, moisture resistant beverage [...]

Ships in 10-15 Business Days (Special Order)