Panel Filter, 20 in L, 20 in W, Chipboard Frame, Aaf Flanders, Mfr#: 220-700-051

The EZ Flow II filter is made to function without a retainer by adhering the frame directly to the media, which has a light skin to make it selfretaining The EZ Flow II frame is made from heavy chipboard in a onepiece design that eliminates corner separation Sealing is accomplished with a resilient hotmelt adhesive running the full perimeter of the frame on both upstream and downstream sides