5Pcs Home Fish Aquarium Air Pump Check Valve One Way Non-Return Check Valve

Features: Safe and durable products, great one way check valve for aquarium air pump. Protect your air pump by preventing aquarium water from back siphoning during a power outage. Place in your airline tubing between your air pump and aquarium water to prevent water returning down the air line. Made of durable plastic,small and compact,It's easy to install. Compatible with standard aquarium air pipe of 4mm inner diameter Perfect accessories for better life. Specifications: Material:Plastic Dimension:as the picture Color:Red,Black Quantity:5pcs Note: Please allow minor error due to manual measurement. The colors may be a little difference for the different monitor display. The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.