Maximum filling pressure is 3000PSI or 200bar, and the gas with oxygen content greater than 40% cannot be filled. Suitable for recreational diving air source with depth of less than 10 meters. Can be used as a backup air source for recreational diving at a depth of 30 meters. The item "DEDEPU Mini Scuba 1L Diving Tank Set Underwater Breathing 25 Minutes Equipment" is in sale since Sunday, July 12, 2020. This item is in the category "Sporting Goods\Water Sports\Scuba & Snorkeling\Tanks".The seller is "divingg" and is located in Shenzhen/Guangdong. This item can be shipped worldwide.