The Unicel C-8409 R is a compatible replacement for the following pool and spa water filters:
The Unicel C-8409 Comp. Pool Filter - Hayward C-900 provides superior purification for swimming pool and spa water through 90 square feet of pleated polyester media. This pool filter cartridge has dimensions of 8 15/16" x 17 3/8" with 4" Open top and bottom styles. This compatible Unicel pool filter is also known as the Filbur FC-1292.