Can you identify this Scubapro 1st stage

I have this vintage looking scubapro 1st stage but I don't know much about it.

Can anyone tell me what specific model it is and some of its features.
Is it a MK V?


Serial # 954923

Here is a photo. Any info would be appreciated

It is an older Mk5. The yoke would need to be replaced if it is to be used with modern tank pressures. All o-rings are standard and the seat is the same as is used in the Mk10 as well as a number of copies. It probably uses the flat filter which I believe is still available. Other than that, most parts are no longer available thru Scubapro but show up occasionally on ebay. I believe the matted chrome yoke from a Mk20 will work for modern pressures. The 2 port turret may severly restrict LP hose configurations and devices. But it should work OK on a pony bottle or with an integrated octo/inflator. You will want to take a close look at the truuetbolt (swivel retainer) as they were chromed bass and very susceptable to cracking if over-torqued.