PuROTwist 4000 RO Replacement Kit, 50 GPD Membrane, Made in USA

Complete Filter Kit – This under-sink replacement filter kit includes all necessary components to maintain your PuROTwist 4000 RO Filtration System, including a 50 GPD RO membrane for optimal performance High Rejection Rates – The PuROTwist 4000 replacement filters effectively reduce up to 98% of contaminants, including chlorine, Arsenic V, lead, fluoride, sediment, and more, ensuring high-quality water for your home Easy to Replace - The quick-change twist-on/off filters ensure hassle-free installation. This kit includes PuROTwist 4000 filters, membrane, and O-rings. The filters should be replaced every 12 months, and the RO membrane every 24 months