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Bestseller - purging is simple with this user-friendly design.

Features include:
Smooth internal bore with flexible drop away bottom section.
Safety whistle built into bottom section.
Snorkel retainer allows for a quick ratchet adjustment.
Purge valve to assist with water clearing.
Low profile exhaust section to ensures no water retention.
Replaceable silicone mouthpiece.
Made from high grade crystal silicone.