Manufacturer : PoseidonCode : 3950In 1958 Poseidon launched the world’s ?rst single hose regulator; the Cyklon. 50 years later, this classic regulator is still in production. Today’s version of the Cyklon is called 5000 and must be regarded as one of the world’s most reliable regulators. Over the years we’ve made changes in materials and design, but the basic functionality of the second stage is still the same. It is a workhorse; robust, reliable and dependable in both cold and warm waters. The side exhaust second stage works just as well up or down. Cyklon 5000 is delivered with a 70 cm hose.