Pictures speak for themselves. I have a MK25 S600 (DIN setup) for sale in excellent condition. Look at the pics....and you decide. It will be do for servicing during the summer, but as with any life support equipment you should have it checked by a professional. The set-up comes with a an Aqualung Octo. If your in no need for it take 25.00 off the price. First 350.00 will enjoy this regulator and that includes shipping anywhere in US as well as paypal fees.