Smaller and lighter than the S600, but with a membrane of the same size, the S620 model offers you excellent performance; Compared to the S600, the respiratory effort has been reduced by 37%, providing the air flow without requiring effort in all immersion conditions. The titanium valve headquarters is ultra-legery, the large spurous button improves the circulation of water, while the new drain increases the performance by conveying the bubbles off the visual field. With any temperature, in all the immersion conditions, this new disbursement system always wins. At the time of delivery, the buyer is required to check that the number of hills corresponds to what is reported on the transport document and that the external packaging of the product (including closing materials) is intact, not d.
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