Squidwear 2mm Neoprene Squid Cap with A/O Scuba Frog Hoses a one-way rubber flapper located

a one-way rubber flapper located on the deck near the rear of the boat opens to drain the water then quickly closes to prevent backwash

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for very sensitive and easy breathing at all depths

Dive boat operators and instructors like them because they can see the diver's tank valve is fully OPEN at a glance

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Squidwear 2mm Neoprene Squid Cap with A/O Scuba Frog Hoses a one-way rubber flapper locatedDetails: Squidwear 2mm Neoprene Squid Cap with A O Scuba Frog FEATURES Neoprene cap Reduces the amount of body heat lost during cool water dives Looks great when worn above water too Available in small or regular size Available Colors: Black, Black Purple, Black Royal or Black Yellow Also come in the following logos: Dive Flag, Nitrox Dive Flag, Athletic Logo, Diver Image or Supply Your Own Label