Description
The Armstrong Fluid Technology 425742-001 Impeller Washer is a genuine OEM replacement part engineered to maintain precise impeller positioning within Armstrong pump assemblies. By securing the impeller at the correct spacing, this washer plays a vital role in preserving hydraulic efficiency, reducing internal wear, and extending the service life of your pump. Built to original equipment specifications, it delivers a reliable, drop-in fit for maintenance and repair applications across compatible Armstrong HVAC and hydronic circulation systems.
Key Features
- Maintains precise impeller spacing and alignment for optimal pump performance
- Supports consistent hydraulic efficiency throughout the pump assembly
- Reduces internal component wear to extend overall pump service life
- Genuine OEM replacement — engineered to original Armstrong specifications
- Designed for compatible Armstrong HVAC and hydronic circulation pump systems







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