You already have a battery solution that you want to use, but you still want an awesome mounting solution for the components of your fish finder, I.e. the control head and transducer.  Not a problem with this lower cost fish finder mounting kit.  It still includes everything you need to mount the fish finder of your choice on your float tube.

4.5 Non-Powered Tube Mount - up to 7" screen

  • -Recommended for fish finders up to 7" inches in screen size