driftwood......
Zeagle DS IV .... dry sealed 4 port
The Envoy is the non sealed version of this reg.
Zeagle DS IV .... dry sealed 4 port
The Envoy is the non sealed version of this reg.
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Becky and I both dive old Zeagle DS IV's, so no environmental seals.
I think "DS" stands for "dry sealed." In any case, you can (or used to could) buy the dry seal parts separately to convert, say, an Envoy to dry sealed.
Of course not! Regulators are critical life support equipment. Should buy only the very best, most expensive and have it serviced annually by certified technicians. In fact, never take the front off of a 2nd stage to know what it looks like inside. You don't need to know that.