• Width: 7.875" 

• Length: 22.125" 

• Top Style: 3 1/16" Open with Step 

• Bottom Style: 3 1/16" Open 

The Filbur FC-1940 is a replacement swimming pool filter cartridge for the Pac Fab/Pentair MY 80. The FC-1940 pool or spa filters are made of high-quality polyester and feature an open core measuring 3 1/16 inches in diameter. Swimming pool filters work in conjunction with balanced water chemistry to remove harmful bacteria and other microorganisms. The FC-1940 pool filters are able to replace the following manufacturer part numbers: Pac Fab/Pentair 17-2811, Unicel C-7680, Pleatco PFAB80, and Aladdin 18001.