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They are slightly different as you can see on the pics. Old version vs. new version? What about inside? I sent an email to Sanosub and of course got no answer so far. Italien company.........Looks like a "Cod.10177", Valvole per aria respirabile Sub 232 bar - Air breathing SCUBA valve 232 bar -.
Great, this is it, thank you.San-O-Sub chez Proteushop
proteushop.com