Garmin Replacement Propeller f/gWind™ & GND™ 10Replacement Propeller f gWind & GND 10 Don't let a missing propeller keep you from receiving accurate wind data. Our replacement propeller ensures you can maintain the twin fin technology with 3 bladed propeller our gWind family of transducers are known for in the marine market. WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go