It has been stored in it's regulator bag since my last dive which was in June of 2018. When put away, it was in perfect condition, but it will need to be serviced by a certified dive shop in order to be 100% safe. First Stage- I have lost the manual, but I believe it is a DCX (see pictures). Second Stage - 500SE with Max Flex Hose. I got into this hobby quite heavily, but stopped for one reason or another.I'm just clearing room in my basement. The item "Hollis Regulator with Octopus" is in sale since Wednesday, May 12, 2021. This item is in the category "Sporting Goods\Water Sports\Scuba & Snorkeling\Regulators". The seller is "dergo-7142" and is located in Saint Charles, Missouri. This item can be shipped to United States.