Description
Product introduction: The function of one-way valve is to prevent water backflow from damaging the front-end air pump or other product equipment. After adding the check valve, the air pump can be placed either above or below the water surface to prevent the danger caused by water backflow when the air pump is powered off and stops working. Product Name: check valve Function Description: prevent the water in the fish tank from flowing back into the air pump and burn the air pump to avoid danger. Reminder: each air outlet needs to be connected with one, and the double head air pump needs two check valves, and so on. Quantity: 10pcs