uxcell 10 Piece Plastic Aquarium Fish Tank 2 Way Air Pump Control Valves, Blue Product Name : Aquarium Air Valve; Material : Hard Plastic Color : Blue; Connector Diameter (Each) : 4.8mm 0.18" Thread Diameter : 9mm 0.35"; Total Size : 3.7 x 2.4 x 0.9cm 1.4" x 0.96" x 0.35"(L*W*T) Weight : 13g Package Content : 10 x Aquarium Air Valve