7" x 14 3/4" closed top

Unicel Cartridges are the finest replacement elements you can buy for your pool or spa . The Unicel cartridge material meets or exceeds the original cartridges that the filter for your pool or spa came installed with. The heavy-duty polyester makes the Unicel cartridge capable of lasting longer than cheaper alternatives . * Made in USA * Heavy-duty polyester material * More cartridge pleats mean improved filtering capacity * Built to the highest possible quality