Kwik Tek Jet Fighter Four Person Towable TubeJet Fighter packs all the excitement of a top tier boat towable, but with a stellar design to boot. This inflatable tube boasts special features you wont find in a round deck tube, like customized bolster fins that keep riders above water when speed picks up. Plus, it has all the same safety features that Airhead tube lovers want. For one, the Patented Speed Safety Valve ensures just the right amount of zest without going overboard. Second, the Jet