Do you often carbonate and serve beer at the same time? If so, or if you would like to be able to do both at different pressures, a secondary regulator is perfect for you! Your primary CO2 regulator attaches to your CO2 tank and allows one output pressure. However, a secondary regulator hooks up inline and allows you to regulate to another keg at a lower pressure. This allows you to carbonate one keg at a higher pressure while serving beer from another at a lower pressure! This Taprite secondary regulator is made to the same high standards as all Taprite equipment, with a high quality diaphragm that keeps regulating long after lesser regulators give up the ghost. Regulate at multiple pressures with a secondary regulator from Taprite!