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Featuring a 1/4" SAE flare connection
This stem utilizes a dual-thread configuration with 5/16-18 NPT for the valve side and 3/8-16 NPT for the float side to accommodate standard industrial float balls
While many residential setups utilize a single sensor
and MP953E 13-inch pneumatic actuators
Lochinvar & A.O. Smith 100208514 Relay 30067439-890 Featuring a 1/4" SAE flareThe Lochinvar & A. O. Smith 100208514 Relay is a critical 24V electromagnetic control designed for precise low voltage circuit switching in commercial and residential hydronic systems. As the direct replacement for RLY2903, this OEM component ensures seamless HVACR system compatibility when interfacing between thermostat controllers and high load mechanical parts. This 24VAC relay is frequently utilized in boiler control boards and water heater wiring
