Product Description The Watts Premier 24 GPD Membrane is an essential component specifically designed for the Watts Premier 5-Stage (WP500032), 4 Stage (WP500025), and Zero Waste (WP0950045) Reverse Osmosis Systems. This high-performance yellow membrane filter is a crucial element in your reverse osmosis system, effectively reducing TDS (Total Dissolved Solids), as well as a wide range of impurities including arsenic, lead, percolate, chromium, copper, and radium, ensuring you have access to clean and safe drinking water. Please note that this product is not compatible with the Watts 1/4 Turn Kwik-Change RO System. This package includes one 24 GPD (Gallon Per Day) Membrane (WP560014) measuring 1.8" in diameter and 10.75" in length and is crafted from high-quality materials, guaranteeing maximum filtration capabilities. Installation of this membrane into your under-sink water filtration system is straightforward, allowing for hassle-free replacement. An outstanding feature of this membrane filter is its built-in internal check valve, which is integral to the membrane's efficient operation, playing a critical role in maintaining the proper functioning of your reverse osmosis system. It prevents the backflow of water, ensuring that the system operates smoothly and effectively, delivering high-quality water consistently. Filter life may vary based upon local water conditions or use patterns, but we recommend replacing this membrane periodically in order to ensure continuous optimal performance of your reverse osmosis system. From the Manufacturer Watts Premier Reverse Osmosis Membranes utilize an internal check valve, so make sure to use only Watts Premier replacement RO Membranes (yellow outer wrapping tape color) for your RO Systems. Watts Premier engineers are constantly working to provide a superior long lasting quality product to you our customers. Since Premier has RO Systems out in the marketplace since 1988, we noticed that check valves, typically placed in the elbow of the system, have a tendency to wear out over time. A RO system with a faulty check valve will become less efficient by running constantly. By placing the check valve in to the membrane, you are assured constant efficient performance due to the periodic replacement of this critical component of the RO system. Using Filmed sheeting, the Watts Premier Membranes are compatible with Premier as well as all standard reverse osmosis systems. This semi permeable membrane effectively reduces TDS and sodium as well as a wide range of contaminants such as Arsenic, Lead, Percolate, Chromium, Copper, Radium and Protozoan Cysts, such as Giardia and Cryptosporidium. The heart of your Reverse Osmosis system reduces impurities down to 1/10,000 of a micron. Fits 5SV, 4SV, Manifold and Zero Waste systems.