Unicel Cartridge For Harmsco Filters | 105 Sq. Ft. | C-7685The Unicel C 7685 is a premium 105 square foot replacement filter cartridge compatible with Harmsco TC 105, BF 105, SC 105, and ST 105 filtration systems. Engineered for optimal water filtration, this cartridge effectively captures debris and contaminants, ensuring clean and clear pool or spa water. Constructed with durable materials, it offers a long service life and reliable performance. Regular replacement with high quality cartridges like the