Product Parameter 1. Capacity: 3L 2. Service Pressure: Max up to 300bar / 4500psi. 3. Water Testing Pressure: 50mpa 4. Burst Testing Pressure: Greater than 102mpa. 5. Product Certification: CCS/CE/EN certificated. 6. Bottle Screw Thread Size: M18x1.5-6H. 6. Product Size: Outside Diameter-114mm / 4.5 inch, Height-458mm / 18 inch 7. Product Weight: 2.2kg. Product Analysis 1. Skilled quality assurance- Military quality, safe and reliable Carbon fiber gas cylinder, safety first choice. 2. Imported material security- Featured high-quality AL6061 material, excellent compressive wear resistance. 3. High strength more pressure- Full-wrapped composite cylinder, its special structure ensures stable product performance, strong safety, pressure up to 30MPa. 4. Design safety seal- Sealing ring groove design safety seal. 5. Fashion of carbon fiber gas cylinder- Seamless design of filament winding. 6. High pressure gas cylinder valve- Valve thread in line with standard. 7. Exquisite workmanship, export quality- Litht and portable. 8. Inspection cycle: 3Yr. 9. Service life: 15Yr. Product Packing 1x 3L Air Tank 1x Regulator Gauge 1x Hose with Quick DisconnectProduct Application: Loading gas, Emergency escape, Fire breathing, Underwater breathing, Lifesaving of ships, Clean energy, Snorkeling diving breathing, PCP rifle and Paintball filling, Medical care and Mine emergency etc. Widely for fire-fighting, chemical industry, shipping, laboratory, mine, pertroleum, warehouse, factory and metallurgy, it can be used in various positive pressure breathing apparatus. Product Advantage: Carbon fiber composite air cylinder is a new material cylinder developed in recent years. Compared with the traditional steel cylinders, the weight is reduced by 70%, the corrosion resistance is strong, there is no magnetic property, the performance is stable, and the inner surface is specially treated to ensure that the holding gas is clean and has no odor, long service life (The service life is 15 years). Product Testing Performance: One of the safety tests is the hydrostatic test pressure, for carbon fiber cylinders, it can reach 50Mpa. The other is the minimum burst pressure, which can reach 102Mpa for carbon fiber cylinders, can hold more gas under the same volume conditions. Product Structure: Using high-quality raw material AL6061 aluminum alloy liner with full-wrapped carbon fiber and glass fiber winding, external surface treatment is epoxy coated, high strength features creep resistance, shock resistance and corrosion resistance. Product Specification: 3L / 30 Cu.Ft capacity, 20-30 MPa / 3000-4500 PSI service pressure, CE certified, Not DOT ( Filling it by yourself ), M18x1.5 bottle screw thread size. Imported. carbon fiber.Date First Available: September 8, 2017. Best Sellers Rank: #1,745,513 in Sports & Outdoors. Customer Reviews: 4.1 out of 5 stars 2 ratings 4.1 out of 5 stars. : B0832G5TV4. Size: ?3L. Part Number: ?3L. Manufacturer: ?IORMAN. Color: ?Cylinder with Red Valve Set. Brand Name: ?IORMAN. Package Weight: ?3.31 Kilograms. Item Package Dimensions L x W x H: ?23 x 6.3 x 6 inches.