Product Description<br> - Filling station with max to 40mpa pressure gauge, included the O-rings apron attached.<p> - Stainless Steel Regulator Valve Gauge that comes with International Standard connecting thread-M18.<p> - High pressure input regulator valve one-way safety valve readings up to 4500psi<p> - It is most economical high performance tank regulator large numbers and red, yellow and read indicators for easy monitoring.<p> - Carbon fiber bottle to vial standard filling system.<p> - Use the seismic pressure gauge, accurate standard, quality and durability.<p> Product Featuers<br> - Import working pressure: 20-30mpa / 200-300bar.<p> - Import connection thread: M18x1.5-6H.<p> - Export link thread: Standard 8mm quick disconnect adaptor.<p> - Connection: Filling hose with 8mm female quick disconnect adapter.<p> - Built Material: Stainless Steel body, hose with spring protection wire.<p> - Safety: Explosion-proof screw ensure safe filling. <p> <b>Note: Please double check the thread size when you purchase, avoid unnecessary misunderstandings.</b>