The 4MM outer diameter suitable for most coffee machines, ensuring uniform water supply, effectively improving the coffee extraction effect and bringing better flavor Suitable for home coffee machines, help home users to make coffee conveniently, enjoy the fun of homemade coffee and improve their of life The length of 20cm makes the water pipe very to connection with a variety of equipment Compared with ordinary PVC water pipes, this high-pressure water inlet pipe is superior in high temperature resistance and aging resistance, which is more suitable for the long-term operational of coffee It will not occupy too much space, and it will not affect the flexibility of use