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Ok I am not quite sure of the meaning of your question. Different between rebreathers or between other Double Hose Regulators. The difference between DHR's or single hose units and rebreathers has always been OC and CC......that is common knowledge......OC has no chemicals or electronics to...

I currently am not concerned with CE certification (certified Europe) as I plan to start with internet sales only, individuals shipped to. To ship to shops who sell in Europe requires that certification, not to individuals who buy from anywhere other than Europe on the net, at least to my...

A double hose, no matter who's you prefer is only the fraction of the cost of a rebreather, the training and maintenance. The death rate of a rebreather user is also astounding high compared to OC, including a double hose. See "searats" comments on the rebreather forum. There is a difference of...

The start up funds of $125,000.00 included all the processes involved in design and manufacturing etc. Visit my campaign site for the budget break down (a pie chart). Granted I was over ambitious with this wanting everything up front to start, therefore a part two campaign to fund the mouthpiece...

1. The Mk3 introduced the low profile (thin) first stage because it didn't start out as a modification of the USD Titan first stage. 2. Quality of the design... Ask anybody who has one how well the Mk3 breathes... There are 18 of them out there. The Mk3 was a proof of concept prototype. And...

I need some help identifying my used portable Mako............serial number on the pump case is KB12139A.000..........manuf. 10/79. Gas powered JMAR engine. Which model is this? There are no other identifying labels other than a MAKO lable and the instructions for use. Also, is there a manual...

Been reading all the reply's and not a soul has mentioned the oldest regulators.............for his needs a USD Royal Aqua Master, DA or Voit Triesti.........converted with a Mossback Mk3 or Mk4 (avaliable in the next few months) or if you can't wait that long, there is Luis Hero's excellent...

Elan, The original HookaPort adapter nut was designed by me. I use to sell these in competition with an older design VDH was selling, until VDH made a cheap copy out of some kind of pipe cap and undersold my design....... But that is water under the bridge......... Anyway, I do not...

I am selling number 20# Mossback MK 3 multiport 1st stage body designed to replace the 1st stage body of the USD Royal Aqua Master; DA Aqua Master and the Voit Trieste. This is the Last MB Mk3 kit produced and Offered for sale. This unit comes unchromed with a complete kit. $235.00 plus...

Ed, Excuse me for hijacking your string, however, I would like to know if anyone (just need 1 individual) would be interested in my last Mk3? Yeah, the last......there won't be any more MK3's I am afraid. My vision is getting worse and I don't trust myself to assemble or test any...

How true, unless there's a pack of them.....I remember how Mr Big fare'd in Live and Let Die......the book, not the movie. Shiny is nice....seems to draw mucho complements from others.......all the regular divers regs now days have dark grey or black plastic with satin nickel 1st...

Only if a Barracuda takes interest!;)

What brand and shade of paint did you use?

Da Nada bj!........

Here is an old string on this very reg. http://www.scubaboard.com/forums/vintage-equipment-diving/103910-imperial-turtle.html

Elmer, There is one other skill with the DH, I have not seen noted on this forum or anyother.....if one looses their mouthpiece-hoses for any reason and it gets away from them and rises over and behind their heads, it can be difficult to locate with both hands. This can get scary for a new...

Elmer, you stated: "I've used these things several times before and never had a problem."..........remember Murphy's Law! hahaha.....glad you have no serious injury.

Pity USD made such a nice stainless steel case for such a piece of crap gauge!

Herman It looks to be once piece, even if the metal ring holding the lens is smooth'er polished than the stainless case............put it in a vice and then tried to loosen it with a pipe wrench.....nothing...........odd way to make a precision instrument.......

thanks................I wonder if there is any solution for rejuvination of the seals.........