Description
The Xylem-McDonnell & Miller 311900 Float Arm Connector (Model 27T-9) is a precision-engineered replacement component designed for use with McDonnell & Miller 25A Series low water cutoff and pump control assemblies. Engineered to OEM specifications, this float arm connector ensures reliable mechanical linkage between the float mechanism and the control assembly, maintaining accurate water level sensing and protecting your boiler from low-water conditions.
Product Overview
McDonnell & Miller has been a trusted name in hydronic and steam boiler controls for over a century. The 311900 Float Arm Connector is a genuine replacement part that restores the mechanical integrity of your 25A Series control, helping extend service life and maintain safe, efficient boiler operation.
Key Features
- OEM replacement float arm connector for McDonnell & Miller 25A Series controls
- Model number: 27T-9
- Ensures accurate float arm positioning for precise water level detection
- Designed for direct, drop-in replacement — no modifications required
- Manufactured to Xylem-McDonnell & Miller quality standards
- Helps maintain safe boiler operation by supporting reliable low-water cutoff function
Compatible Applications
- McDonnell & Miller 25A Series low water cutoffs and pump controls
- Steam and hydronic boiler systems requiring 25A Series control maintenance
Why Choose OEM Replacement Parts?
Using genuine Xylem-McDonnell & Miller replacement components ensures compatibility, reliability, and compliance with original equipment specifications. Aftermarket substitutes may compromise the performance of your low water cutoff control, creating potential safety risks. The 311900 Float Arm Connector is the correct, manufacturer-approved solution for restoring your 25A Series control to full working order.







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