Technical data: pressure: max. 20 bar, temperature: 0.5 - 45 C, plastic parts: polypropylene (PP), food-safe. Package includes: 4 x 3/8 inch OD straight quick plug-in connection, 4 x 3/8 inch OD elbow quick plug-in connection, 4 x 3/8 inch OD T-piece plug-in connection, 5 x 3/8 inch OD Y-piece plug-in connection, 4 x 3/8 inch inline shut-off valve (No tools required for assembly. Filters are not included in this set.) Wide applications: you can use it for water supply line connection of many different machines, e.g. water filter, refrigerator, water dispenser, water cooler, etc. High-quality material: the water inlet pipe quick coupling is made of high-quality food grade plastic material, which is non-toxic and safe, so you can use the water inlet pipe converter for water filters with confidence. In addition, this plastic water filter quick coupling is hard and corrosion-resistant, it is not easy to break or damage and you can reuse it, and protection against water leakage. Easy to install: Our plug connector uses push-to-connect technology, which allows users to quickly and easily connect and disconnect without other tools. It fits standard plastic RO pipes with 3/8 inch (9.53 mm) outer diameter, copper, CPVC, PEX and PVC pipes or hoses.