The Unicel C-5346 R is a replacement spa filter that is the correct compatible replacement for the following filters:
The Unicel C-5346 Comp. Pool & Spa Water Filter has a diameter of 5 3/16 inches and a length of 14 1/8 inches. This Unicel spa filter has a closed top with loop, and an open bottom with a diameter of 1 5/8 inches. This pool filter cartridge contains 50 square feet of 3 ounce filter media.