uxcell 10pcs Aquarium 3 Way Air Distribution Line Connector for 5mm Tubing Product Name : Aquarium Air Line Connector;Material : Plastic Color : Black;Total Size : 35 x 25 x 6mm/1.3" x 0.9" x 0.2"(L*W*T) Outer Diameter : 5mm / 0.2";Inner Dia : Inlet: 3mm / 0.11"Outlet: 2mm / 0.07" Weight : 8g Package : 10 Pcs x Aquarium Air Line Connector