Purolator® Medium Efficiency Pleated Air Filters Withstand Flow Capacities Up To 625 FPM While Maximizing Dust Holding Capacity.
These air filters have a double walled frame with diagonal supports bonded to pleats for added strength and durability. These air filters have a MERV 7 or MERV 8 rating. Filter elements are enclosed in a two-piece heavy duty, high wet strength beverage board frame. Filter media is a loft, non-woven pleated filter made with natural cotton and synthetic fibers. ASHRAE tested.