Metal Aquarium 3 Way Air Control Valve 4mm Inlet 4mm Outlet Dia 2 Pcs Product Name : Aquarium Air Valve;Type : 3 Way Main Material : Metal;Color : Silver Tone Branch Outlet Valve Dia(Each) : 4mm/ 0.15";Inlet Valve Dia : 4mm / 0.15" Overall Size : 45 x 20 x 20mm / 1.77" x 0.8" x 0.8"(L*W*H);Net Weight : 34g Package Content : 2 x Aquarium Air Valve