3-Way Air Valve
This 3-way air valve includes a check valve on the inlet to prevent water return and a convenient mount for easy installation onto your aquarium. The mount features tube holders to secure the air line into the aquarium to prevent floating and kinking of the tubing. Each of the 3 valves allows accurate leak proof flow control. Safe for fresh and salt water aquariums and suitable for 4mm inside diameter silicone air tubing.