Non-Return Check Valves Aquarium Air Pump One Way Valve

Color: Blue Material: Plastic Size: Specifications: for 4-5mm tube Features: > To prevent water backflow to damage the front end of the pump or other products and equipment. > After the addition of the stop valve, the pump can be placed above or below the surface of the water to prevent the risk of water backflow when the pump is shut off. > Each outlet needs to connect a stop valve, two-headed pump needs two stop valves, and so on. Pack contain: 1 x air check valve ~~NOTE~~ READ BEFORE PURCHASE *texture and colour might be slightly different from the picture. due to lighting of environment, monitor and camera setup ****************** Add Don’t Pays/RRP