second outlet with clear rubber knob

The valves by POLARIS are the results of a project geared to maximum reliability and ease of use. They have been designed, developed and manufactured by a strong partner with many years of manufacturing experiance and a long-established leader in the field. All valves by Polaris have been extensively tested both in the prototype and pre-production phases, and has consistently fulfilled the highest expectations under all conditions. The absence of complex and potentially unreliable mechanisms, together with its extremely simple maintenance, makes this a simple and rugged diving valve which can be used in complete safety. POLARIS valves were tested and certified in compliance with EC Directive 89-686- CE of 21/12/1989. In application of that Directive the modalities of the tests performed are in compliance with EN 250: 2014, which make the rules for the placing on the market and the essential safety requirements of the Personal Protective Equipment.