Evolution Aqua Essential Series Dual Union Ball Valves, Slip Connections - a better value BioSafe Systems Contains stabilized Vitamin C for

Contains stabilized Vitamin C for proper tissue development and color enhancers such as astaxanthin (crab shell)

and industrial applications

see the Fountain Basin Auto Fill Kit - 1/2"

5" W 5/8" x 10" Metal/Nylon

Evolution Aqua Essential Series Dual Union Ball Valves, Slip Connections - a better value BioSafe Systems Contains stabilized Vitamin C forBall valves are helpful when trying to regulate pump flow or temporarily restrict flow to work on a pump or filter. They allow you to stop back flow completely while disengaging your pump, or to throttle your flow rate down, or direct water through specific lines. Always restrict the flow at the line discharge and never directly at the pump or on the intake side. The Essential Series is a better priced Double Union Ball Valve from the standard OEM