1XL

Bronze Self Closing Temperature and Pressure Relief Valve

  • Solid bronze body construction
  • Unique thermostat with special thermo-bonded coating
  • Stainless steel spring
  • ASME rated and CSA listed

Select options below to identify the UPC, Order Code, and Repair Kit for a specific 1XL

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