ISTA CO2 Controller - Mini Gauge (Face Up)
Equipped with German-made solenoid with safety valve, assure quality, silence and safety.
Precision needle valve provides stable and accurate CO2 output.
Made with stainless steel, anti-rust.
Hand air-tighten design, no tool required.
Dual gauge indicators show different pressure volume, one indicate the pressure inside the bottle, and the other one shows the depressurize power.