• Weight: 4 oz. 

• Width: 5" 

• Length: 13.3125" 

• Area: 37 sq. ft. 

• Top Style: 2 3/8" Open 

• Bottom Style: 2 3/8" Open 

The Filbur FC-1437 is a replacement spa or pool filter cartridge for the Jacuzzi CFR 37. The FC-1437 spa filters are a polyester-pleated cartridge and cover a surface area of 37 square feet. Spa and swimming pool filters work in conjunction with balanced water chemistry to remove harmful bacteria, body oils, lotions, and soaps during the filtration cycle. The FC-1437 spa filter cartridges are able to replace the following manufacturer part numbers: Jacuzzi 42-3533-00-R, Unicel C-5635, Pleatco PJ37-IN-4, and Aladdin 13702.