Product name：PRECISE Brass needle valve Co2 regulator (1to1)
1. Precise structure, durable stainless steel inner part with aluminum alloy to release CO2 by fine tuning.
2. Special metal-grinded surface, light weight, easy to operate.
3. Ergonomically design, easy to install without using any tool.
4. Connection part can be rotated at will, easy to read the meter without directional limit.
for 4/6mm air tube