The check valve core is used in water pipes or faucets, showers, angle valves, water meter take-overs, water dispensers, water heaters to prevent water flow from stopping.
Installed inside the shower or faucet, the shower or shower head will stop dripping immediately after the faucet is turned off, saving water and eliminating the noise and noise.
Installed inside the water meter, it can prevent the water meter from idling and reverse, affecting the measurement accuracy.