"Use this 3-way brass ball valve to regulate airflow between Airstone diffusers and pumps. U.S.A. Product Type Windmill accessory, Accessory Type Guages and valves, Material Type Brass, Compatible With Airstones/water pumps, Includes qty. 1, Application Regulate airflow. Great for use with multiple Airstones or a combination of Airstones and water pumps"
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