Help with identifying regs

[Andypilot101]

I need help identifying a few odd bits that I have lying around to get a quote for servicing can anyone identify the following 1st and 2nd stages

 

[Tanks A Lot]

Your first picture depicts a ScubaPro R190. The serial number will show the exact manufacturer year.

Your second picture depicts a ScubaPro S600 between November 2002 and September 2009. The serial number will show the exact manufacture year.

Your third picture on the left depicts a ScubaPro MK20 between December 1997 and January 2000. The serial number will show the exact manufacture year.

Your third picture on the right depicts a ScubaPro MK25 from 2002.

 

[Andypilot101]

Wow thank you so much for that.

 

[RickFDA]

Your first picture depicts a ScubaPro R190. The serial number will show the exact manufacturer year.

Your second picture depicts a ScubaPro S600 between November 2002 and September 2009. The serial number will show the exact manufacturer year.

Your third picture on the left depicts a ScubaPro MK20 between December 1997 and January 2000. The serial number will show the exact manufacturer year.

Your third picture on the right depicts a ScubaPro MK25 from 2002.

Out of curiosity... How do you tell the manufacturer year from SN in pre 2000 Scubapro regs?
Is there a rule for that?
Thanks in advance,
Rick

 

[Tanks A Lot]

Out of curiosity... How do you tell the manufacturer year from SN in pre 2000 Scubapro regs?
Is there a rule for that?

That is a fair question, I assumed the first two digits would also indicate the year of manufacture as in the after 2000 models. Truth be told I have no clue if that is actually the case!

I'm sure someone more knowledgeable will chip in.