TUSA SP170 Platina II Hyperdry snorkel is TUSA's premier semi-dry snorkel incorporating several features such as the patented Hyperdry System making this one of the most stylish and feature packed snorkels on the market. Hyperdry system with three current rectifying plates. High flow and angled purge valve to eliminate gurgling of water and allow bubbles to pass by the face when purged. Ortho-consciously designed mouthpiece for ultimate comfort. Silicone flexible neck. Detachable two-section swivel adapter for free movement. Three-dimensional pipe curve for the ideal angle for snorkeling.