About This What You Will Get: The package includes a 3/8-inch quick-connect drain saddle valve, suitable for most standard piping diameters from 1.45 inches to 1.59 inches. Suitable for reverse osmosis (RO) systems Durable Construction: This RO drain line adapter is made of high-quality hard POM and ABS materials, featuring excellent wear resistance, impact resistance, and aging resistance, ensuring long-lasting durability Leak-Proof Reliability: Our water filters valve clamp features a robust, leak-proof core that can withstand pressures up to 3.2 MPa, ensuring safe wastewater discharge without dripping and protecting your under-sink cabinets from water damage Quick Installation: The kit includes a water drain saddle valve, bolts, nuts, and foam washers, allowing you to easily and quickly complete the installation and use it immediately Versatile Application: The drain saddle valve is compatible with all under-sink reverse osmosis (RO) systems, providing a flexible and convenient solution for your water purifier or drinking fountain