Common Questions Which models is this harness compatible with

is a critical isolation component engineered specifically for HVAC centrifugal pumps and circulator motor assemblies

Key Benefits Precision Balance: Factory-aligned 5-blade design reduces mechanical stress on the motor shaft

field-proven solution designed for rigorous industrial monitoring

which is common for commercial-grade boiler manifolds

Fasco D721 Motor 320788-703 Common Questions Which models isWhen you're out on a service call for a standard furnace or air handler, the Fasco D721 motor is the multi horsepower workhorse you want in the truck. This direct drive blower motor features a versatile design that covers 1 4 HP, 1 5 HP, and 1 6 HP requirements in a single unit. Operating at 115V with a 1075 RPM nameplate speed, this 3 speed motor provides the flexibility needed for various airflow demands. Built with a 5. 6 inch diameter (48 frame)