Please help to identify scubapro first stages

[gypsie king]

Hello,

I am helping a friend identify his first scubapro stages, he has two of them.
1) first one is missing the black plastic cap where the model is written

 

[gypsie king]

2) second one has no model written on it

 

[rhwestfall]

Mk20 and Mk10

 

[runsongas]

missing spec boot on the mk10, but DIN is a plus

 

[gypsie king]

So the one missing the plastic cover is a MK10plus (first first stage in the post) and the second one is a MK20 (second set of pictures) ? I am suprised because the MK10 plus looks different from my personal MK10 plus...

 

[rhwestfall]

So the one missing the plastic cover is a MK10plus (first first stage in the post) and the second one is a MK20 (second set of pictures) ? I am suprised because the MK10 plus looks different from my personal MK10 plus...

first post is the Mk20, second is the Mk10 (not Mk10+ unless the seat retainer is satin - which it appears not to be). The seat retainer is the disc with the two small holes in it on the bottom of the regulator.

 

[rhwestfall]

I believe he meant "plus" (an added bonus) because of it being DIN, not the model...

 

[gypsie king]

thanks guys