Evolution Aqua Essential Series Dual Union Ball Valves, Slip Connections - a better value BioSafe Systems Replacement LED bulbs available for

Replacement LED bulbs available for spotlights

Removable mounting base fits between large rocks

SR200-P is better alternative for Anjon 13-pBS-20

Canyon Matrix

100 Tablets Up to 20

Evolution Aqua Essential Series Dual Union Ball Valves, Slip Connections - a better value BioSafe Systems Replacement LED bulbs available 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