Is this the exact same second stage used in on the Poseidon Cyklon 5000 Metal Scuba Regulator? Obviously just excluding the first stage.
Yes, same as the primary. If you want a yellow color on the octo you could get the standard Cyklon in a plastic body. http://www.scuba.com/scuba-gear-33/035158/Poseidon-Cyklon-Octo.html
The Cyklon has been the first choice of many since 1958
Introduced in 1958, the Cyklon was the first regulator in the world with a single hose and the demand valve situated at the mouth, and set a new world standard for diving regulators.
Thanks to its welltested construction and design, the Cyklon is still the first choice of the German Navy and many others.
Model: Plastic/Black, Metal
Material: Cyklon 5000 2nd stage in plastic. Cyklon Metal The same design as the Cyklon 5000, but with the 2nd stage in metal.
Technical features: Use either way up, Robust, durable, Approved for cold water diving, Reliable high performance