Camco’s Replacement RV Vent Fan Blade has a 6-inch diameter and is
for 12 volt-powered RV vents. The fan blade is compatible with a
counterclockwise intake or a clockwise exhaust. The fan hole is
compatible with .094-inch round bore and .125-inch “D” bore motor
shafts. Check blade direction before purchase—rotation direction is
determined by looking up at the existing fan blade when the motor for
the fan is on.