Dive alert for SeaQuest AirSource, Apeks Octo Plus, Zeagle Octo Plus, Beauchat Venturi, Aqua Lung Air Mic, and Oceanic Air XS. This is an older style but what does that mean for you ? A smoking deal and still keeps you safe !! FYI, make sure your head is underwater when you blow these. They are VERY loud !! Which is good !!