Aquarium Air line Tube Plastic Connector Flow Control Regulator Airline Tube
Connect the air pipe and regulate the air output, simple and convenient.
Product specifications: 4mm regulating valve, 4.5mm regulating valve, 5mm regulating valve, 6mm regulating valve, 8mm regulating valve, 4mm three-way regulating valve, 10mm straight regulating valve. (The data here all refer to the minimum outer diameter of the joint edge, because hoses are elastic, the diameter at the deep end of the joint will be greater than the diameter at the edge. If your hose inner diameter is not included in the above, the most approximate value can be used to connect normally.)
Note: If the regulating effect is not good, please hang the upper cover of the regulating valve open and straighten the internal rubber ring.