Shocker S4 1/2in Valve Upgrade Kit

This heavy duty 1/2in valve kit comes with all the parts you need to upgrade your Shocker 4 horns to 1/2in line. Once installed, your horns will be even louder! (We were surprized too!) Using the included 1/2in feed line to the horns provides 4 times as much air insuring maximum volume at all pressures.

All Push-To-Connect (P.T.C.) Kit

The package comes with P.T.C. fittings. Think of them like Chinese finger-traps: you simply push the air line in and the fitting holds on. It really couldn't be easier!