The shut-off valve is made of high quality plastic. It can be used as a protective device for the aquarium oxygen pump to prevent siphoning in the event of a power outage or malfunction. The water flows back to the oxygen device and causes the It is easy to install and suitable for aquariums, homes, schools, etc. Use of aquariums in the premises. Product Information: Material: Plastic Color: Red Size: Length: 2.2in/5.5cm Diameter of the inlet and outlet holes: 4mm Weight: 4g Note: Please do not use with CO2 systems. Packing specification: Check valve*15 If you have any questions, please contact us, we will be happy to provide you with a satisfactory solution .
