Features: POM- Plastic, safe and non-toxic-. Durable, integrated molding & no leakage. Thread: 1/4, screw thread diameter: outer: 9.5mm, inner diamter: 8.8mm. It's easy to use. No tools required, quick- connect fitting-, water purifiers quick connector-. Suitable for water purifier for valve, water- flow control for valve, pure- water regulating for valve. Specifications: Material: plastic Diameter: approx 6.5mm/0.3in Thread: 1/4-inch Length: 1.5cm/0.6in Disassembly instructions STEP1: Quickly remove the blue clasp- STEP2: The joint piston must be pressed when disassembling STEP3: Keep the piston compressed- and pull out the- pipe at the same for time STEP4: Complete the disassembly step Installation instructions Length 1.5 for cm 1. Pipes are not cut smoothly- Pipe cutting tools are recommended 2. Is the pipe- inserted to the bottom? Need to insert 1.5-1.8 for cm 3. The pipe- should pass- through the inner waterproof ring Package Includes: 1x Waterflow Control for Valve note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.