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LF53

Lead Free* non-Calibrated Pressure Relief Valves

  • Lead Free* cast copper silicon alloy body
  • Poppet-style valve protects domestic storage tanks and tankless water heaters from excessive pressure
  • Furnished with test lever
  • 1/2 in. (15mm) size

Select a Model

Select options below to identify the UPC, Order Code, and Repair Kit for a specific LF53

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