ITEM NAME:Aquarium 10-Outlet Lever Adjusted Pump Air Valve Manifold Taps R4K9 Aquarium 10-Outlet Lever Adjusted Pump Air Valve Manifold Taps R4K9 Aquarium Air Valve Design : Dual Line 10 Way Outlet Fit Tube Dia.(Outlet) : 4mm/0.16-Inch Fit Tube Dia.(Inlet) : 18.5mm/0.73-Inch Overall Size : 13 x 6 x 2.3 cm/5.1-Inch x 2.4-Inch x 0.9-Inch (L*W*H) Package: 1 x Aquarium Air Valve Material : Metal Color : Silver Tone Net Weight : 178g This aquarium air valve is made of solid metal, suitable for high power air pumps, with 10 individually controlled outlets If you have multiple fish tanks in your room This 10 way aquarium air control valve allows you to distribute air to each tank as much as you wish. Note:Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.The measurement allowed error is +/-1-3 cm.