Features 1、With dual gauge design, one gauge shows pressure for carbonating and dispensing, the other gauge displays how much CO2 is left. 2、You can use this CO2 regulator to carbonate plain water to get super cheap seltzer, soda and carbonated water. 3、The CO2 regulator does a great job holding a steady pressure, and pressure is easy to adjust with the knob with no tools needed. 4、The CO2 regulator comes with a safety manual pressure release valve releases at 45 PSI. 5、Made of chrome plated brass and plastic, which makes it more durable and perform stable performance. Specification Condition: 100% Brand New Item Type: CO2 Regulator Color: As Pictures Shown Material: Chrome Plated Brass+Plastic Pressure Gauge for Fuel Tank: 0-3000 PSI Barrel Pressure Gauge: Output 0-60 PSI As a home brewer, you probably want to learn as much as you can about your beer.This carbon dioxide regulator will let you know how much beer you have in it and how much more it can release. This CO2 beer regulator is perfect, not only knowing how much CO2 is in the cylinder, but also easy to set the pressure with the control knob, and how it can be locked after you set it to the pressure you want. Package List 1 x CO2 Regulator 2 x Fastening Ring