DIN Valve Scuba Adapter Regulator with Gauge Scuba Tank Valve Filling Station for Air Tank DIN Valve Scuba Adapter Regulator with Gauge Scuba Tank Valve Filling Station for Air Tank Accessories HPA Tank Diving Product Descriptions: 1. The scuba adapter is used for air test and air transfer. It is very easy to operate and bring lots of convenience to the industries like scuba diving, firefighting, medical facilities and mineral mining etc. 2. It is 22 inches/50cm in length, thus ensures the enough length to connect to the fittings on both ends. 3. It features quick release and quick locking. The whole procedure could be handled in a short time and even people with no professional training could handle it with great ease. 4. Its design and style is really up-to-date and look very chic. One will never feel bored when he is working on it. 5. - Stainless Steel Regulator Valve Gauge that comes with International Standard connecting thread-M18x1.5 & 5/8-18UNF. 6. High pressure input regulator valve one-way safety valve readings up to 4500psi. Product Featuers - Import working pressure: 20-30mpa / 200-300bar. - Import connection thread: M18x1.5 or 5/8-18UNF. - Export link thread: Standard 8mm quick disconnect adaptor. - Connection: Filling hose with 8mm female quick disconnect adapter. - Built Material: Stainless Steel body, hose with spring protection wire. - Safety: Explosion-proof screw ensure safe filling. Buy it now, get free backup o-rings! Note: Please double check the thread size when you purchase, avoid unnecessary misunderstandings. _x000D_