For your consideration are these SEVEN BRAND NEW GENUINE SCUBAPRO parts to
Upgrade Your R-109 to a balanced R-156 or G-250 Second stage regulator.
Below are four advanced parts with SCUBAPRO item numbers on each.
If you require more photos or have questions just write me and I shall get back with you asap.
Item #1 Demand Lever 11.250.141
Item #2 "S" Poppet Carrier complete 11.250.220
Item #3 Rivet Seat 11.250.221
Item #4 2-O-Rings 01.050.383
Item #5 Advanced Mixing Chamber 11.150.102P,
Item #6 "S" poppet spring 01.020.216
item #7 Three Pages of color photos with written instructions.
NOTE: Air Lever part numbers:
109 11-109-105
BA 11-109-105 revision R 12/97
G250 11-109-105 revision A 07/88
G250 11-109-105 revision B 12/97
G250HP 11-250-141 revision D 03/00
G250V 11-250-141 revision (none) 03/2007
Bulletin #266 12/99
G250 to G250HP Upgrade compatibility mentions to retain the lever Number- 11.250.141.
However, it also mentions earlier versions of the G250 can not be converted.
(versions without the CE marking)
Are the levers from the later (CE) models backwardly compatible with the non-CE models?
Maybe. Bulletin #266 also mentions the up-gradable models have a cover retainer pin.
G250C model has this pin see REV B 12/97 diagram. The lever Number is 11-109-105.....
the same as the older models.
On to the poppets:
Number: 11-250-220 poppet, new configuration single O-ring, appears in 06/98 G250 diagram.
From SP Bulletin #261 01/31/1999
SCUBAPRO has implemented an in-line change in the G500 second stage poppet current part
number 11.250.220. Production of G500's with the new poppet will begin arriving in your stores shortly
before the end of the year.
The new poppet will also become a standard in the G250 second stage in mid-1999.
The SCUBAPRO part number for the poppet will not change.
Annual repair kits 11-254-045 for the G250/G200B/Balanced Adjustable regulators will be shipped
with the new poppet beginning the second week in November (the G500 annual repair kits do not
normally contain a poppet or seat and these can be ordered separately).
The new poppet can be identified by its distinctive shape and the fact that it uses two O-rings on
the balance stem.