• Weight: 3 oz. 

• Width: 6" 

• Length: 19 5/8" 

• Area: 50 sq. ft. 

• Top Style: Crescent Handle 

• Bottom Style: 1 15/16" Open 

The Unicel C-6605 R Compatible Pool & Spa Replacement Filter Cartridge is a spa or pool filter cartridge for the Four Seasons 50 square foot. The Filbur FC-3075 is a compatible replacement filter. These pool or spa filters are a cartridge-style filter made of a tightly-pleated polyester material. The FC-3075 spa or swimming pool filters are able to replace the following manufacturer part numbers: Unicel C-6605, Pleatco POX50, and Aladdin 15029.