LF40L

Lead Free* Automatic Re-seating Temperature and Pressure Relief Valves

  • Automatic reseating feature
  • Accurate thermostat with special thermo-bonded coating and with option of extended length for use in water heaters with thick insulation
  • Lead Free* brass body
  • Valve provides automatic temperature and pressure protection to hot water storage tanks and water heaters

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