Our billet adjustable CO2 regulator is essential for controlling the flow of CO2. It screws onto the CO2 tank and has two key gauges: one measuring the pressure within the tank and the other showing the pressure being delivered. By adjusting a knob, the regulator allows the user to precisely set the output pressure, ensuring they deliver the correct amount of CO2 for the intended purpose. Has a single 1/4 npt outlet.