Metal Non Return Valve Details: Material: Stainless steel Size: as the picture shows Outer Diameter: 4mm Metal Non Return Valve Features: The check valve is made of premium stainless steel materials, very durable and sturdy. It is also rust-resistant, easy to clean and break-resistant. This stainless steel check valve is anti-leak and anti-backflow. It can prevent water flow from returning and keep the function and service life of a carbon dioxide bottle. It is also anti-high pressured, anti-acid and alkali. The check valve is suitable for the CO2 supplying system and NOT air pumps. It is suitable for the tube of inner diameter 4mm and outer diameter 6mm. Metal Non Return Valve Note: This check valve is for the CO2 system ONLY. It cannot be used with DIY hand-made or air pumps. The inlet direction is shown in the picture. It is suitable for the tube of inner diameter 4mm and outer diameter 6mm. Upgrade your aquarium setup with the Metal Non Return Valve – Order now and experience the difference!
