this 100109675 Flue Baffle Assembly is the current manufacturer-recommended replacement for several older part numbers

Durable Construction: Wrapped fabric cover provides superior protection against abrasive dust and environmental contaminants

As a direct Reznor 178178 replacement motor

HVAC technicians rely on the Reznor 55681 for precise drop-in compatibility

PACO Pump 91909837 Seal Kit 321894-709 this 100109675 Flue Baffle AssemblyAs a veteran HVACR technician, you know that performance in chemical and high temperature hydronic systems depends on the integrity of your mechanical seals. The PACO Pump 91909837 Seal Kit (Model K105 6) is engineered specifically for demanding commercial pump maintenance. This kit utilizes high grade Viton elastomers and a Ni Resist stationary seat, providing the chemical resistance and thermal stability required for Paco Pump Model 1270, 1570, and