VEVOR Mini Scuba Tank, 1.9L Portable Small Diving Tank for Underwater Breathing, Reusable Lung Diving Cylinder up to 35 Minutes Dive Time, Emergency Rescue Pony Bottle with Backpack for Snorkeling

VEVOR Mini Scuba Tank, 1.9L Portable Small Diving Tank for Underwater Breathing, Reusable Lung Diving Cylinder up to 35 Minutes Dive Time, Emergency Rescue Pony Bottle with Backpack for SnorkelingLong-Lasting Breathing SupportHigh-Pressure ResistanceSmooth & ReliableEasy Refilling & ReusableTravel-Friendly & PortableLuminous Pressure GaugeTank Wall Thickness: 0.3 in / 7.4 mm,Tank Thread: M18 x 1.5,Medium Pressure Hose Length: 33.5 in / 850 mm,Tank Capacity: 0.5 Gal / 1.9 L,Tank Mouthpiece Material: Silicone,Maximum Diving Depth: 32.8 ft / 10 m,Item Model Number: S700PLUS-2,Product Weight: 9.3 lbs / 4.2 kg,Maximum Tank Filling Pressure: 20 MPa,Tank Diameter x Height (Tank Only): Φ4.4 x 13.6 in / Φ111.5 x 345 mm,Tank Refill Port Size: 0.3 in / 8 mm Male Connector,Tank Material: Aluminum