This may be the most expensive regulator ever built by Scubapro all brass and stainless steel.This regulator is in excellent condition mechanically,   It's been completely serviced, lubed and adjusted to an IP.138 given all-new production 0-ring, This regulator has a great feature when the tank pressure gets low around 500-PSI. It lets you know it's time to go home ( work on Ambient Pressure )  What you see is the way it will be delivered.  It can be used with Nitrox up to 40%    This regulator is dive-ready, just plug into it.  ... (, this is a first-class regulator that competes nicely with anything on the market today )  If you're doing a lot of bottom diving or working under a boat this is a nice regulator to be working with, you are not dragging an extra hose around....,   The big advantage of the MK7 is to be told verbally, it's time to go home, sometimes we get distracted and don't always keep an eye on the SPG...... however plug one in.     Comes with three port plugs, and a swivel giving you four low pressure ports and one high pressure port.This is a balanced first stage. This basically a  MK5 with an added feature.  locks up fast and tight. no plastic inside........see pictures

      Return accepted only if it does not meet my selling description  ( All new 0-rings and seat