The second setup is an oceanic dx3 first stage with a delta 2 second stage. The dx3 and dx4 first stages are very similar, the delta 2 has been paired with a number o first stages. They are great regs to use.
Regulator Identification
- Thread starter kb2ehj
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Doug Krause
Contributor
That last setup is what we called the Delta 2 Subzero - came standard with the white cover and environmental kit on the DX3 first stage.
davidfield
New
Thanks for the info. I assume then they arwe fine for our UK cold water since they are' subzero' regs 
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