12x20x1 Merv 11 Furnace Filter (12 Pack)Save! 12x20x1 Merv 11 Furnace Filter (12 Pack) Order Now Before Price Up. Publisher By Glasfloss Industries. The Glasfloss Z-Line Series pleated filters offer improved performance for virtually every application. All Glasfloss Z-Line pleated filters feature fibers which do not absorb moisture and will not support microbial growth. The Glasfloss Z-Line Series MR-11 filters achieve a MERV 11 rating per the ANSI/ASHRAE 52.2 Test Standard. The Z-Line Series MR-11 pleat is available in many standard face dimensions in 1", 2", 4", and 6" depths. Glasfloss Z-Line Series pleated filters incorporate media which is laminated to a galvanized metal that stabilizes the media during operation. The pleats are formed in a radial configuration to ensure proper dust-loading. The standard pleated cartridge is bonded into a two-piece heavy-duty beverage board diecut ..... Read More & See Full Information At Amazon.com 
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