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Dulac Logo Water Heater Isolation Device

Water Heater Isolation Device
Prevent expensive water heater
damage and mold eradication due
to a leaky water heater.

Safe Plug Relief For Water Heater Safety
Prevent catastrophic explosions on water heaters
and boilers with the SPR.

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Leaky Heater

Enter our T&P Valve Contest and Win $100.00
$100 reward for the best photo example of a tampered T&P. Ten winners to be announced for the best documented photo of improperly installed, never inspected, plugged or tampered Safety Relief Valves. So grab your camera or phone and take a photo of a T&P valve improperly installed or tampered with. Anyone can enter and you can enter as often as you like.
EnterContest Now Read IAMPO Article

Safe Plug Relief (SPR)

The Dulac Safe Plug Relief (SPR) fitting is a safety device for water heaters and boilers. In the event a plug, a valve, or some other blockage is used to defeat the purpose of the discharge from the T&P Relief Valve, the SPR will separate. This will allow the T&P Relief Valve to work as expected (BLOW OFF), preventing a Water Heater or Boiler explosion.
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Water Heater Isolation Device (WHID)
The WHID is the Only AUTOMATIC SHUT OFF VALVE FOR A WATER HEATER/ WATER HEATER LEAK DETECTOR that is hydraulically activated eliminating the need of any electrical energy or sensing devices. The WHID's ability to isolate a leaking water heater with the least amount of water seepage is instrumental in preventing mold eradication damages.


Reliable, Affordable Leak Protection
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Important Message for Plumbing Professionals
Important Message for Plumbing Professionals
Dulac Plumbing
Features & Benefits SPR
  • CSA Certified
  • Tamper Proof
  • Fast & Easy to Install
  • Constant Protection
Features & Benefits WHID
  • No Power Required
  • Activates with only 1/2 cup of water loss
  • Does not require pans, dams or sensors
  • Union ends for fast
    and easy installation
  • Retains residual water from leaking out

Home | SPR | WHID Installation | SPR | Catastrophic Equation | Faq's | Contact Us

SPR & WHID are protected with one or more of the following patents:
6698714, 2437533, 6021808, 2328173, 6823887, 2371001
Dulac Plumbing Innovations Corp.