Can someone identify what Scubapro Version Regulator this is?

[lexvil]

I’m glad these will finally get used instead of rotting away in a bin for the next 20 years.

I have this silly idea that I’ll live long enough to travel again, so I have this MK 20 UL that I’ll be upgrading to MK 25 and had been thinking about the possibility of filling the ambient chamber, I had decided that it wasn’t a good idea, until today. I have a titanium Mk11 so this will likely be a back up to that.

 

[p_kos]

I have this silly idea that I’ll live long enough to travel again, so I have this MK 20 UL that I’ll be upgrading to MK 25 and had been thinking about the possibility of filling the ambient chamber, I had decided that it wasn’t a good idea, until today. I have a titanium Mk11 so this will likely be a back up to that.
View attachment 642894

Dreams come true on SB, lol. I honestly couldn’t believe anyone still had these for sale when I stumbled upon the website. Most shops threw these in the trash 20 years ago. There seem to be many other NOS treasures at Charlene’s shop from what I’ve seen on her website.

 

[Couv]

BTW @Charlene Barker is a member here on SB.

 

[Charlene Barker]

WHOA ! I just saw this thread !! I am blushing !! No wonder all of these boots sold out !! Thank you for all of these kind words !!!

 

[Caveix]

Hey guys,
Can you pls help me with this one? Somebody selling it claims its an Scubapro Mk25 Evo. I'm pretty sure its not but rather either a very early Mk25 or a Mk20 - maybe it has the newest intestines but from the outside it looks like a 20y+ model to me. Am I wrong?
Thanks a lot!

 

[lexvil]

Hey guys,
Can you pls help me with this one? Somebody selling it claims its an Scubapro Mk25 Evo. I'm pretty sure its not but rather either a very early Mk25 or a Mk20 - maybe it has the newest intestines but from the outside it looks like a 20y+ model to me. Am I wrong?
Thanks a lot!

Looks like an early 25 but maybe a 20 with the 25 adjuster added.

 

[Eric Sedletzky]

In my opinion (others will differ) SPEC is "okay" (still not my choice) for freshwater, but I'd never use one in saltwater. Seen too many horror stories. Sealed diaphragms for me or a piston with an open ambient chamber to flush well.....

Absolutely!
Open ambient chamber all the way.
I dive salt water exclusively.
I soak my UNSEALED OPEN AMBIENT CHAMBER piston regs (I want to start a war) hooked to a tank and pressurized!!!!!
After soaking I stand the tank up and squirt some water into one of the ambient chamber holes with a garden hose or spray bottle and watch water squirt out of the surrounding holes. Then I know it’s clean and all the static water has been purged. Been doing it this way for years and NOT A HINT of corrosion or crap on the piston stem spring or on the cap.
A friend of mine is a reg tech down at a very busy scubapro shop in San Pedro. They get in a butt load of severely abused MK25’s from the University. Those poor regs are lucky to ever see anything but salt water and they are never rinsed unless it’s chlorine pool water. They clean right up, he rebuilds them and off they go like new.
Hearing that gave me confidence that SPEC is a bunch of outdated hooey and it’s unnecessary.
It’s also a testament to the unsurpassed quality of Scubapro and their fantastic regulators.
You get what you pay for.

 

[buddhasummer]

Hey guys,
Can you pls help me with this one? Somebody selling it claims its an Scubapro Mk25 Evo. I'm pretty sure its not but rather either a very early Mk25 or a Mk20 - maybe it has the newest intestines but from the outside it looks like a 20y+ model to me. Am I wrong?
Thanks a lot!

It's no Evo. Agree with @rhwestfall