12 Pcs Aquarium Air Pump Valve, Air Control Valve for Aquarium, T-Shape Tube Connectors, Accessories 2 Way Aquarium Valves for 4 mm Tube, Black

These air control valves are made of plastic, they are durable, not easy to break and are lightweight. They are ideal for regulating oxygen levels in aquariums or for controlling water flow in drip irrigation systems. Aquarium air control valves regulate oxygen in the aquarium by controlling the air flow, so that the aquatic environment keeps the air fresh and creates a healthier environment for your fish. Just cut your air hose in half, insert the valve and turn the knob to open or close it as needed. Ease of installation saves you time and effort. These valves are often used in home aquariums, landscape aquariums, restaurant decorative tanks and other irrigation systems to easily control the flow of air and water, it is an ideal air control valve for aquariums. Each package contains 12 pieces of T-shaped control valves, enough quantity to cover your daily use and replacement needs, 4 cm long x 2 cm high, suitable for standard 4 mm inner diameter air hoses.