uxcell Aquarium Tank Air Line Tube Volume Flow Control Valves Regulator 8 Pcs Product Name : Aquarium Air Control Valves;Design : 2 Way Fit Hose Connector Dia : 8.5mm /0.33";Overall Size(Approx) : 70 x 30mm / 2.8" x 1.2"(L*W) Material : Plastic;Color : White Net Weight : 44g Package : 8pcs x Aquarium Air Control Valves