🏝️【15-20mins Underwater Experience】Chikadiv mini scuba tank has 1L capacity. You can stay up for 15-20 minutes underwater with total freedom. The usage time will be affected by external factors such as temperature, diving depth and breathing rate..🏝️【Better user experience】Chikadiv mini scuba tank adopted the air switch valve that extends the gas storage time in sealed. The design of constant pressure valve is more in conformity with our breathing rhythm. In addition, explosion-proof valve is safer. When the inside pressure exceeds 5000PSI, it will automatically vent to reduce pressure..🏝️【Various Inflation modes】The 8mm one-way inflation valve of scuba diving tank can connect the refill adapter to fill up. Usually, you can use a bigger bottle to guide vials. Also, you can use the high-pressure hand pump or electronic pump. Using the hand pump is a little difficult for us, so it is just as the alternate inflation method. The electronic one takes about 15 minutes. In addition, if there is a diving store, you can ask for help..🏝️【Quality Guarantee】The whole bottle of scuba tank is made of 6061 aviation aluminum, with 4mm thickness, which is more Anti-oxidation and anti-corrosion. The working pressure is no more than 3000PSI/200bar/20Mpa. The surface with hard oxidation and spraying is resistant to seawater corrosion. The scuba tank can be used for 1-2 years, and it is recyclable. What’s more, quality inspection is required every year..🏝️【Our Service】You will get an exquisite box including a 1L scuba tank and a cloth bag. Have any question, contact us.