Sub Duck for ScubaPro and Tusa Octo Inflators
These little underwater Air Hammers make a racket that can be heard by your dive buddy even if wearing a hood. Making a Quaking Duck type sound - these are known as the Sub Alert or Sub Duck. This version is compatible with ScubaPro's A.I.R. 2 and TUSA's Duo-Air.
Sub Duck for ScubaPro and Tusa Octo Inflators - Accessories: Signaling