uxcell 10 Piece Plastic Aquarium Air Pump Control Valve, Yellow/Gray Product Name : Aquarium Air Valve; Hose Connector Diameter : 5mm 0.2" Overall Size(Approx.) : 47 x 23mm 1.9" x 0.9"(L*W); Material : Plastic Color : Yellow, Gray Weight : 19g Package : 10x Aquarium Air Valves