Saim Fish Tank Single Row Air Flow Control 8-way Aquarium Lever Valve Control the flow of vital O2 from your pond aerator or aquarium air pump with this handy Air Control Valve. Nickel-plated lever 8-Way Aquarium Valve can be used for aquarium and aquaculture applications. Lever valve let you operate it easily The outlets of Water Flow Control Valve can be connected to aquarium tubings