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McDonnell & Miller 172810 150S-M-MD-HD Head Replacement for Float Type Combo LWCO & Pump Controller with Manual Reset and Maximum Differential (Steam) Buy Direct
Original price was: $1,247.15.$498.86Current price is: $498.86.
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The McDonnell & Miller 172810 model is a head replacement for float type combo LWCO and pump controllers. This unit features manual reset and maximum differential settings suitable for steam applications.
- Designed for Series 150S and Series 157S boiler controls.
- Includes a snap-action manual reset switch for high-temperature service.
- Features switches for pump control and low water cut-off with alarm actuation.
Product Highlights
This replacement mechanism provides reliability in steam heating applications, helping to prevent nuisance burner shutdowns.
Product Information
Standard Information
- Brand: McDonnell & Miller
- MPN: 172810
Technical Specifications
- Model: 150S-M-MD-HD
- M&M Series: Series 150S
- Replaces: 173302, 150-M-MD-HD
- Weight: 10.44 lbs
- Maximum Operating Pressure: 50 psi





