Scubaroo once bubbled...
...............Can anyone confirm?
Hi,
The differences between these second stages are:
AT20
AT20+heat exchanger+decal 40= ATX40
AT20+heat exchanger+poppet+decal 50= ATX50
AT20+improved heat exchanger+poppet+decal 100= ATX100
AT20+improved heat exchanger+poppet+decal 200= ATX200
de difference between the standard heat exchanger and the improved one, is that the improved one has more threads and thus has better warming capabilities. This is necessary is the ATX100/200 can produce more air in short time and has to be 'warmed' more, so Apeks has added more thread to it.
Also the heat exchangers come in satin finish, which is used for atx100/200 and chrome finish which is used for apeks atx40/50 and suunto teno regs.
These heat exchanger are made of brass and must fit exactly on the second stages. They are expensive. In Germany I have seen them selling for $29-$45. I have heard that there are LDS's who buy at20's and upgrade them to atx40 by adding the heat exchanger.
Apeks is trying to avoid this and is asking huge amounts of money for this.
I someone wants to upgrade to a ATX40, one should by the ATX100/200 heat exchanger instead of the atx40 heat exchanger. (both are the same price, but the 100/200 exchanger has more capability)