Engineered for high-durability performance

Most failures result from moisture in the sensing lines or a failing inducer motor rather than the switch itself

OEM Compatibility: Precision-fit for White-Rodgers HFT2100 and compatible flow-thru models to ensure zero-gap filtration

Extended Service Life: Synthetic seating material ensures positive shut-off and resists synthetic oil degradation

Watts 0121475 Valve Freon Engineered for high-durability performanceThe Watts 0121475 (Model LF174A 3 4 100) is a high capacity pressure relief valve designed specifically for protection against excessive pressure in large hot water heating boilers and low pressure vessels. Featuring a Lead Free copper silicon alloy body, this 3 4 inch NPT threaded valve is engineered for durability and compliance with modern potable water safety standards. With a factory preset relief pressure of 100 PSI and a high BTU steam