Check valve rubber versatile flexible, anti-backflow valve, for hoses 1/2", 3/4", 1"

With this check valve, you can prevent water from flowing back in the opposite direction! The rubber valve closes as soon as pressure comes from the wrong direction and opens automatically when water pressure comes from the desired direction. Thanks to the various hose connections, this check valve is versatile and flexible. The hose connections are suitable for all hoses with a diameter of 1/2", 3/4", or 1".