The Unicel C-8610 R is a compatible replacement for the following pool and spa water filters:
The Unicel C-8610 Comp. Pool Filter - Hayward C-1100 provides superior purification for swimming pool and spa water through 100 square feet of pleated polyester media. This pool filter cartridge has dimensions of 8 1/2" x 23 3/8" with 4 1/16" Open top and bottom styles. This compatible Unicel pool filter is also known as the Filbur FC-1290.