Description
The Fasco A155 is a direct replacement draft inducer blower engineered to restore reliable combustion venting performance in Armstrong heating systems. Designed for precise fit and function, this unit eliminates the guesswork of sourcing compatible replacement parts and gets your system back up and running quickly.
Key Features
- Single-speed operation for consistent, dependable performance
- 115V input voltage for standard residential compatibility
- 3000 RPM counter-clockwise (CCW) rotation
- Direct OEM replacement for Armstrong draft inducer blowers
- Replaces Armstrong part numbers 40425-003 and 7021-10046
Replacement Cross-Reference
- Armstrong 40425-003
- Armstrong 7021-10046











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