24 x 24 x 6 hepa filter for sale, brand-new and used.

Up for sale is ONE single 1" thick filter. Cost is much cheaper if buy a box of 6 FILTERS on my other auction. 24" x 22" x 1" thick plastic mesh filter panels that are loaded with carbon particles.

THIS IS A BRAND NEW IN BOX NEVER USED ASTROCEL I MODEL HT500 HIGH TEMPERATURE CAPABLE HIGH EFFICIENCY PARTICULATE AIR HEPA FILTER PENETRATION 006% DOP @ 20% 009% TEST FLOW 1000CFM 24" BY 24" BY 12" The filter housing behind the flange is 22 1/2" X 22 1/2" The flange is: 24" X 24"Back of housing to the back of the metal part of the flange is 11 1/2"Gasket on the back of the fla