• PURE SILICONE - FDA regulation compliant. (Rubber articles intended for repeated use / 21 CFR 177.2600) TUSA Sport use pure silicone for the snorkel mouth-piece and mask skirt.
• HIGH FLOW PURGE VALVE - A large diameter purge valve for simple, quick clearing, reducing the amount of water remaining in the mouth-piece
• HYPERDRY ELITE - DRY TOP - The latest innovation in dry snorkel technology utilizing an independent high buoyancy float for superior dry performance. This keeps the snorkel completely dry by quickly and efficiently closing the tube opening.
• Large capacity drain chamber and purge valve for easy clearing
• Ortho-consciously designed mouthpiece for ultimate comfort

The USP250QB dry snorkel features TUSA Hyperdry Elite dry top technology (pat p) that stops water from entering into the snorkel, a drain chamber and purge valve for easy clearing, and silicone mouthpiece.