Description
The Xylem-McDonnell & Miller G-4-SS is a 48-inch probe rod constructed from 316 stainless steel, engineered for reliable water level detection in boiler and hydronic heating systems. Designed as a direct replacement or upgrade component for McDonnell & Miller probe-type low water cutoff and water level control assemblies, this probe rod delivers exceptional corrosion resistance and long service life in demanding steam and hot water boiler environments.
316 stainless steel is the material of choice for wet-side boiler components due to its superior resistance to chloride-induced corrosion, oxidation, and scale buildup compared to standard 304 SS or carbon steel alternatives. The 48-inch length accommodates a wide range of boiler vessel depths and mounting configurations, making it a versatile solution for commercial and industrial boiler applications.
Key Features
- 48-inch probe rod length for deep-vessel boiler installations
- 316 stainless steel construction for maximum corrosion and scale resistance
- Designed for use with McDonnell & Miller probe-type water level controls
- Compatible with steam and hot water boiler systems
- Direct OEM replacement — Part Number 179158
- Ensures accurate, dependable water level sensing for low water cutoff protection
Application
This probe rod is intended for use with Xylem-McDonnell & Miller probe-style low water cutoff controls and water level regulators. It is suitable for commercial and industrial steam boilers, hot water boilers, and hydronic heating systems where reliable water level monitoring is critical to safe and efficient operation.
Why 316 Stainless Steel?
316 SS offers enhanced resistance to pitting and crevice corrosion in high-temperature water and steam environments. Its molybdenum content provides superior protection against mineral deposits and aggressive boiler water chemistry, extending the service interval and reducing maintenance costs compared to standard stainless alternatives.
Product Details
- Brand: Xylem-McDonnell & Miller
- SKU / Part Number: G-4-SS / 179158
- Material: 316 Stainless Steel
- Length: 48 inches
- Application: Boiler water level control probe assemblies
