These replacement reverse osmosis membrane elements are designed for compatibility with selected RainSoft drinking water filtration systems. Choose the appropriate membrane model based on your existing RO system.

### Compatible Models & Systems

– **CTA RS9-10:** Fits RainSoft 9590, 9593, and 9594 RO systems.
– **TFC-RS9-12:** Compatible with 9565, 9591, 9594, and 13016 RO systems.
– **TFC-RS9-22:** Designed for use with 9568 and 9596 RO systems.
– **TFC-RS9-50:** Fits 9757, 21191, 9598, 21179, 21176, UF50, UF50T, UF50TCB, and UF50T-CBVOC RO systems.