This Kegco LH-872N Commercial Grade Double Gauge Nitrogen Regulator is compatible with nitrogen tanks with CGA 580 valves, making it perfect for kegerators dispensing stout beer, coffee, or wine. The convenient dual gauge design measures both PSI and the volume of nitrogen gas in the tank, so you will know when it's almost time to refill. The durable regulator body is made of forged brass with all brass connections and components, a sintered brass inlet filter, and a self resetting safety release valve. Each of the regulator gauges features an easy to read design and comes with a rubber gauge protector to help prevent damage. The top gauge tells you how much nitrogen pressure is in the keg and has a 0-60 psi display. The side gauge tells you how much nitrogen gas is left in the cylinder and has a 0-2000 display. The gas flow can be easily changed by hand thanks to the large pressure adjustment knob, eliminating the need for a screwdriver. This nitrogen regulator also has a tamper proof safety pressure relief valve that releases at 45 psi and a shut-off valve that lets you instantly shut off pressure to the keg without backing up your gas line.