Professionals can switch between 0-20 psig and 3-15 psig output ranges instantly

Operating on standard 115V / 60Hz single-phase power

featuring a straight-through flow design that minimizes pressure drop across the line

inducer fan cycles

F for accurate thermal response

Watts 0121494 Relief Valve Els PW 17895 Professionals can switch between 0-20The Watts 0121494, also identified as the LF174A 1 75, is a high capacity pressure relief valve designed specifically for hot water heating boilers and hydronic heating systems. Featuring a 1 inch female NPT inlet and outlet, this Lead Free copper silicon alloy valve provides robust protection against over pressure conditions with a factory set relief pressure of 75 PSI. With a massive steam discharge capacity of 2,055,000 BTU hr, it is engineered for