Description: Suitable for aquarium and fish tank, you can connect tubing to air pump, air stone and air valve. Air lever valve can be connected to aquarium tubing. Air control valve can control the flow of vital O2 from your pond aerator or aquarium air pump. Suction cups stay firmly on the surface of your fish tank. Used for aquarium and aquaculture applications. Easy operation. T-connector allows you to combine two inputs to create one output and is excellent for use with dual outlet pumps. Package Include: 1 x Air Tube 6 x Sucker 1 x 4-way Air Flow Control Valve.