Yagote CO2 Glass Aquarium Supply Accessories CO2 Diffuser CO2 Drop Checker CO2 Bubble Counter Check Valve for Aquarium Planted Tank Check Valve

Our Yagote Check Valve is made of high quality stainless steel materials. Its very durable and sturdy. It can prevent water flow from returning and keep the function and service life of carbon dioxide bottle. The check valve can ensure that the water and air circulations are consistent and going in the right direction without any backflow. Its great for sensitive fish species. Note: this check valve is for co2 system only. It is suitable for the tube of inner diameter 4mm and outer diameter 6mm. Package: 1x Yagote Check Valve