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and 1/2" bore specs
Automatic Reset Logic: Eliminates manual intervention by automatically restoring the circuit once temperatures return to a safe 120°F
The "/U" suffix denotes a universal technician-ready packaging
Key Benefits Broad Compatibility: Engineered specifically for the Honeywell Q624A Solid State Spark Generator and legacy Q652 series units
McDonnell & Miller RB-24E-S Control 30067439-890 and 1/2" bore specsThe McDonnell & Miller RB 24E S (Part Number 144693) is a heavy duty, 24VAC conductance type low water cut off designed specifically for residential hot water boiler applications. Engineered for reliability in the field, this unit features a 3 4" NPT connection with brass threads to ensure a secure, leak free metal to metal seal. The RB 24E S includes a specialized control board wiring harness, allowing for efficient "plug and play" integration with
