SSI Extended Range Nitrox (40m) Course Harness & Backplate During the practical day

During the practical day

Elastic cuffs & thumb loops to optimize airflow into dry gloves

Nautilus Medium Pressure Hose ½"

more flexible

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SSI Extended Range Nitrox (40m) Course Harness & Backplate During the practical daySSI Extended Range Nitrox (40m) Course The SSI Extended Range Nitrox (40m) Course program provides divers with the training necessary to independently plan and conduct limited decompression dives to a maximum depth of 40 meters, using nitrox mixtures of up to 50% and recreational or Extended Range Total Divng systems with an equally qualified dive buddy. This course can be done in Twinset or Side Mount configuration. Prerequisites for the SSI Extended