yeah i use that on my bro's boat,an 18' parker. it does the trick ,picking up pieces in the bay. I havent used it in water deeper than 40' though. Also,as far as the fish symbol goes,I find that it shows every piece of seaweed as a fish,either that or there are always a ton of fish under me and im the worlds worst fisherman.But like i said,for a bay runabout,its fine.