20PCS Gray ABS Plastic Aquarium Fish Tank Hose Adjust Air Line Tubing Volume Flow Control Valves

Feature: 1. Two way plastic valve can be used as an embedded valve to control air flow from pump 2. Suitable for aquarium standard air line tubing and CO2 tubing with inner Diameter about 4 mm. 3. Help to increase oxygen and keep air fresh, create healthy environment for your fish. 4. Easy to connect hose, convenient to operate and use. 5. The air regulating valve is connected to the middle of the air pipe, and the air volume is adjusted by rotating the valve. Specification: Condition: 100percent Brand New Item Type: Aquarium Flow Control Valve Material: ABS Color: Gray Quantity: 20PCS Suitable Tubing Inner Diameter: Approx. 4mm 0.16inch

Package List: 20 x Aquarium Flow Control Valve