Evolution Aqua Dual Union Ball Valves, Slip Connections Size:3" Use any low amperage koi

Use any low amperage koi pond pump for backwashing

flat bottom helps fish lie flat for easy handling

Thermostatically controlled deicer turns on and off as needed

WunderMax 1

Accepts either threaded or slip fittings (not included)

Evolution Aqua Dual Union Ball Valves, Slip Connections Size:3" Use any low amperage koiBall 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.