Product details
SunSun HJS-308 Check Valve for Aquarium Air Diffusers
One-way check valve for CO₂ systems, aquarium aerator pumps, and air lifts. Check valves are non-return valves that allow flow in one direction and automatically prevent backflow. Suitable for air hoses with an inner diameter of 4 mm.
Please also check out our other aquarium accessories. If you need assistance with a malfunction of your SunSun product, feel free to contact us. We are happy to help you.