- Reduces troll speed in "down" position
- Acts as a stabilizer in "up" position
- Smooths out ride in rough water
- Reduces proposing and cavitation
- For use with 20-50 HP engines
- A significant invention in the sport of troll fishing, Happy Troller mounts on the anti-cavitation plate to allow fine control of trolling speed. At cruising speed, your boat's stability is enhanced. Locks in 'down' position for trolling. Locks in 'up' position for cruising. Happy Troller is the answer to correct trolling speed. Use it year-round in all boating activities; salt and fresh water.