Does anyone have a list or chart that shows how the Conshelf models changes over time?
I ask this as I just picked up what I thought were 2 Conshelf XII for my kids to play around with in the pool, well at least both have Conshelf XII on the Yoke knob.
The first has a 1st stage serial number starting with 74, a Mistral style 4000 psi yoke & nut, 1 HP port and 2 LP ports.
The other has a 1st stage serial number starting with 77, screw on style 4000 psi yoke, 1 HP port and 3 LP ports.
Are these both XII, or is the one with the serial number starting with 77 a new model?