Intermatic 156T4042A Heater Control (Fireman) Switch Kit Fireman Switch Heater Control

SKU / MPN: 156T4042A


In Stock - Ships Same Day if Ordered by 12pm



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Product Information

Product Description

The Intermatic 156T4042A is an essential heater control switch kit for pool and spa systems. This fireman switch provides crucial safety functionality by automatically shutting off the heater when water flow is interrupted, preventing damage from overheating. The kit includes a durable enclosure rated for indoor or outdoor installation.

  • Prevents heater damage from low water flow
  • Automatic shut-off safety control
  • Includes fully enclosed, weatherproof switch housing


The Intermatic heater control switch kit monitors water circulation and cuts power to the heater if flow is lost, safeguarding expensive equipment. The corrosion-resistant enclosure allows reliable operation in harsh pool environments.



  • Brand: Intermatic
  • Model: 156T4042A

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Safety Information: Proposition 65

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