【High Pressure Resistance】 :It could resist working pressure up to 20-30 Mpa / 200-300 Bar / 3000-4500 PSI, with a gauge to indicate the pressure.【Types of Threads 】:For international standard connection thread M18 x 1.5. Be sure to check the tank thread before purchase. It needs to be compatible with the valve thread.【Dual Gauge Design】:gauge indicate tank pressure,the other gauge indicate the inline pressure. WIth 24 inchlong stainless steel spring protection hose.【Easy Installation and Quick Release】:It comes with an 8mm female quick-release coupling plug, and it could be connected and released from other male fittings within seconds.【Application】:Suitable for pcp airsoft gun or paintball canister filling, mainly used for high pressure cylinders, SCBA cylinders or PCP cylinders for air/carbon dioxide filling.