3/4″ GURU PC®

Price: Contact us for purchase info: (877) 379-8258

SKU: Series 450 (3/4")

Product Description

3/4″ GURU PC® Product Sheet
3/4″ GURU PC® Installation and Maintenance Instructions


  • Eliminates costly freeze damage in passenger cars
  • Easy installation
  • Completely mechanical, no electrical or air connections
  • Minimal maintenance required
  • High flow design for rapid draining
  • NSF 61/372 certified by a third party
  • Shock  & Vibration tested by a third party

Design Features

  • Low lead brass/bronze
  • Self-operating valve
  • Dual port seals
  • No power or air required when used without heater
  • Inline serviceable


The ¾” GURU PC® valve is self-contained and drains water bearing systems automatically before freeze damage can occur by monitoring ambient temperatures. Freezing conditions, which put water tanks and piping at risk for freeze damage, occur when the car heat is turned off for switching locomotives or even brief layovers. Since the valve is completely mechanical, no electrical or air connections are required. When used with the heater assembly, we provide a 5 foot (1.5m) cable and wiring diagram for hard wiring, or any various plug of your choice.