This UltraZap thermostat is the temperature control for UltraZap pond heaters: set the temperature you want and the heater only runs when it is needed.

That keeps energy use down while holding a garden pond, a big fish tank or an aquarium-style koi setup at a steady temperature through winter. A faulty thermostat is the usual reason a heater runs constantly or never switches on.

Good to know:
– Replacement thermostat for UltraZap pond heaters
– Set your temperature for steady control
– Heater cuts in and out only when needed