The Ista Metal Air Valves (2 Outlet) allow you to control up to 2 different airlines from your air pump. Quickly and easily attach this handy device to your aquarium frame and streamline your air hose setup. With a control knob available for each outlet, you can adjust the pressure on each air tube individually. Customize the use of your air stones, bubble wands, air-powered decorations, or any other air pump-powered device. 1.5" x 1.25" x 3"
