Suit for hot or cold water, gas, air, oils, low viscosity fluids, hydrocarbons, gasoline, kerosene, or engine fuel. Made of brass, the air generator is durable and has a long lifespan. It can be used for an extended period. The air generator is suitable for all kinds of water bottles, such as those for coffee, tea, milk, etc. It is easy to install and remove; no tools are required. Simply place the air generator on the valve base and press the button to complete the installation., Manufacturer: LSIJN