1PE Material: This barbed tee connector selected high quality PE material, strong and durable in use, can be buried in the ground or in the open air, without harmful elements, it is an ecological product.2Easy Installation: 16mm to 4/7 lock reducing tee, press the barb tee into the tube, and lock the tube with the screw cap, fast and easy, you don't need to use other tools.3Stable And Reliable: The reducing tee connector has high stability, anti aging, acid, alkali, salt, moisture, soil, sunlight, etc. Suitable for water pipe connection.4No Leakage: Compact structure, high strength, low fluid resistance, suitable for connecting water pipes, which has good sealing and prevents water leakage.5Scope Of Application: The 16mm to 4/7 tee fitting is perfect for connecting hose, suitable for urban greening, greenhouses, gardens, flower, vegetable greenhouses, etc.