Specifications BrandDIDEEPProduct Name3L Portable Scuba Diving TankMaterial6061 Aviation AluminumCapacity3LMaterialAluminumColorYellow Black GreenMaximum Pressure3000PSI 200BAR 20MPAPumping Time30 50minsWeight5 233kgSize41 5 14 2cm Features 1 The 3L oxygen cylinder allows the diver to stay 1 10 meters underwater for 30 50 minutes depending on individual lung capacity and depth of diving perfect for beginners 2 Supports 3 types of inflation Manual high pressure Inflatable pump aqualung switch electric inflator Inflator Pump is more laborious and takes a long time It is recommended to use aqualung switch electric inflator 3 Uses 6061T6 aluminum material and meets the manufacturing standards for diving equipment 4 Breathe underwater diving with total freedom 5 Made of aviation aluminum material and meets manufacturing standards of diving equipment 6 It is waterproof corrosion resistant high hardness 7 The pressure gauge is connected with extension hose it is more convenient when you use it underwater and you need to check how much air left 8 The pressure gauge has a luminous function and the water is still clear at 80 meters Made of high quality PT aviation aluminum it is waterproof corrosion resistant high hardness Package includes 1 x 3L Diving Cylinder1 x Double Shoulder Back Clip1 x Diving face guard1 x Yoke 8mm Quick Connector