Poseidon Cyklon 300s, for bailout and deco bottles, since I have accumulated quite a few, over the years; so too, the Xstream 4790, whose first stage is just as compact and oriented in the very same way as the far earlier 300s -- being "in-line" or "back-mounted." Typical of the Swedes, all of their regulators have no up or down orientation and can be used from either side. Yea, for that.
All maintain rock-solid IPs for years at a time; tolerate the cold like nobody's business; and are dirt simple to service; but I still stand by the old 300s, in a pinch, truly "the AK-47s of regulators," for its few parts and even the use of nylon washers, in lieu of most o-rings, in the earlier models, which can last for years, between replacements.
I mean, c'mon . . .
All maintain rock-solid IPs for years at a time; tolerate the cold like nobody's business; and are dirt simple to service; but I still stand by the old 300s, in a pinch, truly "the AK-47s of regulators," for its few parts and even the use of nylon washers, in lieu of most o-rings, in the earlier models, which can last for years, between replacements.
I mean, c'mon . . .