HIGH QUARITY: This check valve is made of selected high-quality stainless steel materials and is made of unique and advanced thermal technology. With this, there are some characteristics, durable, not easy to break and easy to clean in it.
FOR CO2 SYSTEMS: The stainless steel check valve is suitable for co2 supplying system and NOT air pumps. It is suitable for the tube of inner diameter 4mm and outer diameter 6mm.
INSTALLATION: The check valve is installed between the oxygen pump or carbon dioxide cylinder and the fish tank. After installation, check the block. When installing, the connection must be tight to prevent the pipe from slipping.
FUNCTION: Ensuring the water and air circulations consistent is this check valve's job and it is going in the right direction without any backflow. It also does well in dealing with some problems cacused by sensitive fish species.
AFTERSALE SERVICE: If any problems or questions are confused you, please do not hesitate to contact us at any time. We guarantee 100% replacement and refunding service.