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HydroGuard ES150

ES150/ETV Series - HydroGuard XP Emergency Tempering with Internal Bypass

  • Exclusive internal cold water bypass ensures cold water flow in the event of loss of hot water
  • Quickly compensates for temperature variations due to changes in inlet temperature or pressure
  • Advanced thermal actuation technology precisely blends hot and cold water for tepid water delivery to emergency fixtures
  • Meets the stringent performance requirements of ASSE 1071

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific HydroGuard ES150

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet or ask a Watts representative. For general information regarding any approval certification partners identified in the specification sheet, please visit our certification partners’ websites:


ASSE CSA FM Approvals NSF
UL ULC USC WQA