the 51W93 features a dual 1/4" barb connection for secure pneumatic tubing attachment

a defrost cycle timer

Installation Versatility: The 1-inch female NPT threads ensure a leak-proof connection for standard distribution lines

allowing technicians to select the appropriate range for specific differential pressure requirements

The Field Controls 01967701 features a 24-inch control size with a 452-square-inch nominal capacity

Lochinvar & A.O. Smith 100110880 Valve 321894-708 the 51W93 features a dualThe Lochinvar & A. O. Smith 100110880 Valve is a professional grade 1" T&P relief valve engineered for high capacity water heater temperature and pressure protection. Designed with a 150 PSI pressure rating and a 210F temperature relief threshold, this valve serves as a critical safety component in both commercial and heavy duty residential applications. The 3" probe extension ensures accurate internal tank sensing, making it an ideal A. O. Smith