Hydro Flow's Shutoff Barbed Ball Valves allow you to turn on and off your hydroponic or water lines manually with confidence. These quality line of shut-off fittings will allow high-end performance and commercial reliability. We have used non-corrosive plastic for these ball valve fittings and they are guaranteed to create a tightly secure, watertight/airtight fitting connection. Available in 1/2" and 3/4" models.