Ultra-Web Flame Retardant Asymmetric Cartridge Filter, 13.74-inch x 13.74-inch outer diameter x 26.00-inches long, Open/Open Endcaps for Downflo Evolution and other brands of cartridge collectors. (2.00-inch Pleat Height).
This is Ultra-Web filter media with a Flame Retardant (FR) treatment which should be selected when handling airstreams where sparks are present or fires might result. Cartridges are rated as MERV 13, suitable up to 180 degrees F airstreams, and have enhanced surface loading and excellent release characteristics. Flame retardant means it will not support an open flame.