PSC motor - more efficient than standard shaded pole motors. Replace old motor quickly Minimal tools needed Motor casing may vary in color 2.45 Amps 1120 RPM The PVM115 motor is the replacement motor for the GAF Master Flow Power Roof Vents (PR3 series) and Power Gable Vents (PG3 series). This upgraded PSC (Permanent Split Capacitor) motor is easy to install with the power vent in place, no need to remove power vent. Minimal tools needed for replacement.