Pay in 4 interest-free payments of $130.47 Learn more
Ships within 48 hours · Estimated delivery Sep 24 - Sep 29
Simplified Installation: Features a standard 1/4 inch MFL connection for easy replacement of older P70 or P170 series controls
In standard residential environments
System Compatibility: Integration-ready for Series 21 single furnace and Series 31 multi-furnace configurations
Complete System Monitoring: Continuously checks pressure switches and high-limit sensors to prevent equipment damage
What do I do if the valve hums or fails to open
Watts 0121528 Valve THPU32HP7Y Simplified Installation: Features a standardFor high capacity thermal protection on commercial boilers, the Watts 0121528 (equivalent to the Watts LF174A 150 1 1 4) provides reliable overpressure safety for hot water heating systems. This lead free pressure relief valve is built with a heavy duty copper silicon alloy body, specifically engineered to withstand corrosive water conditions without sticking or freezing. Featuring a factory set point of 150 psi and a high volume discharge capacity of