HydroGuard e427

HydroGuard series e427/e428 thermostatic mixing valves

  • Used in showers, baths, hospital hydrotherapy, and residential areas where precise, consistent water temperature is required
  • All parts are accessible from the front to facilitate cleaning and maintenance
  • Automatically mixes hot and cold water to deliver blended water at the preset temperature
  • Maintains temperature despite temperature and pressure fluctuations in the water supply

Select options below to identify the UPC, Order Code, and Repair Kit for a specific HydroGuard e427

Approval/Certification Information

For product-specific approval information, please refer to the product’s specification sheet (see literature section above) 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