1 Exhaust Fan Blade; For 12 Volt bathroom Roof Vents/ Range Hoods;

1/8 Inch D-Bore; 6 Inch Length; Clockwise Spin; White; Plastic.

12 Volt Jensen Roof Vents/ Range Hoods/ Bathroom Exhaust Fan

Compatibility: 12 Volt Jensen Roof Vents/ Range Hood

How do you determine the direction of spin? 

Looking down through the motor at the top of the blade.