Important Note: It is important to maintain the quality of your system by using only genuine RainSoft replacement filters and cartridges. When “made-to-fit” alternative filters and cartridges are placed into your RainSoft Ultrefiner II Premium Drinking Water System, the product warranty will become null and void and the system will lose its NSF certification. To guarantee proper operation and certification of your RainSoft Ultrefiner II Premium Drinking Water System, please use genuine RainSoft parts.
Membrane Cartridge 50 GPD 9590 & 9596
Engineered for superior filtration, your system is certified to reduce Total PFAS, Microplastics, Cysts, Lead, Chlorine/Chloramines, Volatile Organic Compounds, and more - giving you peace of mind with every sip. The membrane cartridge is a spiral wound, semipermeable cartridge that requires periodic replacement approximately every 18 to 36 months. The membrane is the main filtration that provides you with the best quality of water. Your water quality and water usage may affect this replacement schedule.