Swimmingpooltimeswitch.com

Precision replacement timers snap directly into Intermatic, Tork or Paragon timer enclosures, no tools or hardware required. To find your Precision replacement timer, see the cross reference chart below and then choose your Precision single model or 6-pack from the drop down box. Often refered to as a "Fireman's Switch", these timers provide separate control of your pool pump and pool heater. This two-circuit time switch is designed to turn off the heater approximately 20 minutes before the filter pump is turned off.