Aftermarket cardboard frame replacement filter:
Please note that the original 30966 PermaLife filter (which is no longer available) was a molded plastic framed filter. This new aftermarket version has a cardboard frame with a foam gasket around the inside edge of the filter.
Hunter Air Purifiers: 30747, 30748, 30750
Approximate Dimensions: 12-3/8" x 6-5/8" x 2-1/4"