Williams 7B111 Fan Blade 30067439-890 With a calibrated pickup voltage

With a calibrated pickup voltage of 320-340V and a dropout range of 60-160V

Is the P81580 compatible with other HVAC brands

3/8" Stroke for 9

allowing the automatic reset furnace switch to return to a closed state once temperatures normalize

This 10-pack of Mars resistors provides the necessary bulk inventory for large-scale maintenance or emergency service calls

Williams 7B111 Fan Blade 30067439-890 With a calibrated pickup voltageThe Williams 7B111 Fan Blade is a critical replacement component designed specifically for Forsaire Counterflow Top Vent furnaces. This 8 blade aluminum assembly is engineered for 65,000 BTU models, including the Williams 6508 series, where maintaining precise static pressure and consistent CFM is vital for heat exchanger integrity. Featuring an 11 1 4" diameter and a 1 2" bore, this CW (clockwise) rotation blade ensures the blower assembly moves air