M6 Thread, 3/4" Bore Diam, 1.85" OD, Shaft Locking Device MPN:C123E-075

This pleated air filter exhibits MERV 13 efficiency with an impressive rating of 80-85%, ensuring efficient filtration capabilities in filtering small particulate matter such as pollen, dust mites and allergens from the air. Ideal for use in residential heating/cooling systems or office spaces where indoor air quality is paramount. The 10 x 20 x 1-inch frame accommodates seamless insertion into standard air conditioners or furnace filters while the wire backing ensures reinforced durability that lasts up to three times longer than ordinary flat filters.