• Weight: 4 oz. 

• Width: 7 1/4" 

• Length: 28 9/16" 

• Area: 130 sq. ft. 

• Top Style: 3" Open 

• Bottom Style: 3" Open 

The Unicel C-7413 R Compatible Pool & Spa Replacement Filter Cartridge is a spa or swimming pool filter cartridge for the Sonfarrel 130 with step. Filbur manufactures the FC-1637 as a compatible replacement filter. These durable polyester-pleated cartridges promote safe and healthy water by removing harmful bacteria and other microorganisms. The FC-1637 pool filters are able to replace the following manufacturer part numbers: Sonfarrel/Martec 2201630 and 2301630, Unicel C-7413, and Aladdin 23001.