Scuba pro 109 purge diaphragm

[SamSamandpegitha]

Hello.
Rebuilding couple old but good 109’s and cannot seem to find the silicone purge diaphragms I purchased the black rubber puter but cannot seem to find the correct silicone one underneath. Any help appreciated
Thanks
S

 

[Rusty Shackleford]

Try Vintage Double Hose. Google them.

 

[rhwestfall]

That Isn't going to be easy....

 

[SamSamandpegitha]

Bought most of parts from vdh. Didn’t find the silicone diaphragm on the site

 

[Kupu]

The same diaphragm part # (11-109-124) has been used in both balanced adjustables and some G250s.
Measuring diameter on a few of these diaphragms and unmarked diaphragms from 109s, they all look to be 73mm.

A later version G250 diaphragm part # 11-250-1XX is 74mm but it does fit into a 109 as well.

 

[scrane]

How about this?

SCUBAPRO Purge Diaphragm for R-108 HP, R-109 , R-156, G-200,G-250 & others. | eBay

 

[SamSamandpegitha]

Thanks

 

[axxel57]

Okay, I'm a bit late, but of course is most easy way to get yourself a silicone diaphragm for your old 109s by ordering with any SP Dealer the 11.300.008 Diaphragm or cannibalize an old R190 (or not old) 2nd, because it uses the same diaphragm since the end of the 90ties, which is the same which was used for the G250 and the late BAs.
I found its shape (it's a bit higher) works better at fine adjusting than the old 11.109.124 silicone diaphragm.
Even with 100% and more win span for your dealer it should not be more expensive than 15,- US$ (Price List 2020) for you....