Description
Xylem-McDonnell & Miller 343400 Float and Gasket — 63 Series Low Water Cut Off
Keep your boiler’s low water cutoff operating at peak reliability with the Xylem-McDonnell & Miller 343400 Float and Gasket Kit. Designed specifically for the McDonnell & Miller 63 Series Low Water Cut Off (Model SA63-30), this genuine OEM replacement kit ensures a precise fit and restores the float mechanism and sealing integrity of your existing control.
Product Overview
The McDonnell & Miller 63 Series is a trusted low water cutoff used in steam and hot water boiler applications to protect against low-water conditions that could cause boiler damage or failure. Over time, the float assembly and gasket can wear, corrode, or degrade — making periodic replacement essential for safe, code-compliant boiler operation. The 343400 kit provides both the float and gasket needed to restore full function.
Key Features
- Genuine OEM replacement float and gasket for McDonnell & Miller 63 Series LWCO
- Compatible with Model SA63-30 low water cutoff controls
- Restores proper float operation and watertight seal
- Helps maintain safe boiler water levels and prevent dry-fire conditions
- Manufactured to original McDonnell & Miller specifications for reliable fit and performance
- Supports routine maintenance and service of steam and hot water boiler systems
Application
- Replacement part for McDonnell & Miller 63 Series Low Water Cut Off
- Model compatibility: SA63-30
- Suitable for steam and hot water boiler systems
Why Choose Genuine OEM Parts?
Using genuine Xylem-McDonnell & Miller replacement components ensures your low water cutoff performs exactly as designed. Non-OEM parts may not meet the dimensional or material tolerances required for proper float buoyancy and gasket sealing — potentially compromising boiler safety. The 343400 kit is the manufacturer-approved solution for restoring your 63 Series LWCO.
