Description
The McDonnell & Miller 310453 (Model CTRD-101) is a genuine OEM replacement black cartridge and strainer assembly engineered for use with McDonnell & Miller 101A, 47, 247, and 847 Series low water cutoff and pump control units. Designed to maintain reliable system protection, this cartridge and strainer combination helps ensure accurate water level sensing and guards against debris entering sensitive control components in hydronic heating systems.
Key Features
- Genuine McDonnell & Miller OEM replacement part (SKU 310453)
- Model Number: CTRD-101
- Black cartridge and strainer assembly for easy identification and installation
- Compatible with 101A, 47, 247, and 847 Series low water cutoff and pump controls
- Helps protect control internals from sediment and debris in boiler/hydronic systems
- Supports accurate water level sensing and reliable cutoff performance
- Direct OEM fit — no modifications required
Compatible Series
- McDonnell & Miller 101A Series
- McDonnell & Miller 47 Series
- McDonnell & Miller 247 Series
- McDonnell & Miller 847 Series
Application
Ideal for HVAC and hydronic heating professionals performing routine maintenance or service on boiler low water cutoff controls. Replacing worn or fouled cartridge and strainer components helps extend the service life of your McDonnell & Miller controls and ensures continued safe boiler operation.
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