Sell One Way Non-Return Check Valve PVC Water Stop Valve Air Pump Connector Accessories best price

Description: The check valve is used to prevent water backflow from damaging the front air pump when the air pump is cut off or below the water surface. The water stop valve is an indispensable air pump accessories to prevent air pump water. Air Pump is suitable for more than 99% of the oxygen pump for stopping flow, and the inner diameter of 4mm oxygen pipe is universal. If you find that the check valve does not vent after it is connected, please check whether the installation sequence is correct. If the air pump is wrongly installed, please disassemble the check valve according to the picture and gently pinch the vent with your hand. Sometimes the rubber part is slightly stuck due to high temperature or other reasons. This one way non-return water stop valve will bring great convenience to the whole family. Specification: Color: Red. Size: length: 5cm / diameter: 4mm. Material: PVC. Note: Please cut off the small part of the oxygen pipe, which is used to connect the bubble rock and the check valve respectively. Pay attention to the direction of the check valve. The black head is partly toward the oxygenating pump; the transparent head is connected to the bubble rock; nd finally the air pump is connected. Do not immerse the oxygen pump in water and do not oil the air pump during use. Package include: 1* check valve.