Description
Xylem-McDonnell & Miller FLT-51-05 Float and Gasket Kit
Keep your boiler water level controls operating at peak performance with the Xylem-McDonnell & Miller 310437 Float and Gasket Kit (Model FLT-51-05). Engineered specifically as a direct OEM replacement for McDonnell & Miller 51 and 551 Series low-water cutoff and pump control assemblies, this kit delivers the precise fit and reliable sealing needed to maintain safe, efficient boiler operation.
Product Overview
The FLT-51-05 kit includes the float assembly and matching gasket designed to restore proper water level sensing in 51 and 551 Series controls. Using genuine manufacturer-matched components ensures accurate float response, leak-free sealing, and long service life — critical factors in any hydronic or steam boiler system.
Key Features
- Direct OEM replacement float and gasket for McDonnell & Miller 51 and 551 Series controls
- Precision-matched float for accurate water level detection
- Gasket provides a reliable, leak-free seal at the control body
- Restores proper low-water cutoff and pump control function
- Simplifies routine maintenance and service of existing installations
- Manufactured to Xylem-McDonnell & Miller quality standards
Compatible Series
- McDonnell & Miller 51 Series low-water cutoffs and pump controls
- McDonnell & Miller 551 Series low-water cutoffs and pump controls
Specifications
- SKU: 310437
- Model Number: FLT-51-05
- Brand: Xylem-McDonnell & Miller
- Kit Contents: Float and Gasket
- Application: 51 and 551 Series boiler water level controls
Why Choose OEM Replacement Parts?
Using factory-specified replacement components like the FLT-51-05 ensures your McDonnell & Miller control returns to its original operating specifications. Aftermarket substitutes may compromise float buoyancy or gasket sealing integrity — risks not worth taking in a safety-critical boiler application. Trust Xylem-McDonnell & Miller parts for dependable, code-compliant boiler protection.







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