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For contractors managing pneumatic systems or process control loops
they are identical units
If the switch "flutters" or loses contact mid-cycle
The Robertshaw 10-681 Flame Sensor is a high-sensitivity monitoring component engineered for precise flame rectification in residential and commercial gas-fired systems
McDonnell & Miller RB-24E-S Control 30067439-890 For contractors managing pneumatic systemsThe 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
US$ 300.00
US$ 165.00
US$ 350.00