Made of all stainless steel, waterproof and corrosion-resistant, and the fluorescent dial is clearly visible The air source can be completely closed and the air output can be adjusted with the decompression chamber Balance the gas pressure in the bottle, constant pressure and stable output Micron double filter gas External explosion-proof valve, safer to use, more accurate explosion-proof value Welcome and I wish you a happy life, my friend, Manufacturer: DCDCD