The plastic and metal SuperFlow® second stage SCUBA regulators are high performance, non-balanced, venturi assisted, fully adjustable regulators. They are based on the original SuperFlow® SuperLite® 17 Helmet and BandMask® SuperFlow® regulators. The first stage regulator (not pictured) is a high performance balanced piston regulator. When combined, the first and second stages are great for SCUBA diving to depths of 50 metres or less on air and in waters that are 10°C or warmer. As a SCUBA combination, the regulators conform to EN250 2000 for warm water use. They are not recommended for use with enriched air or gas where the oxygen content exceeds 23%. The second stage can be used for light duty surface supply and low pressure compressor use. The first stage is fully CE marked IAW EN15333-1 and can also be used as a surface supplied emergency bail-out regulator for both warm and cold water use.