The Long-Bite mouthpiece is standard on the DGX Gears XTRA and Dive Rite XT regulators, fits all brands of regulators we sell and modern models from MOST other brands, except Poseidon. Available in hypoallergenic black silicone here (and other colors separately), we also include a tie wrap.

Note: The fit on some very old second stage models from the 70's and 80's with slightly smaller openings such as the old Aqualung metal second stage bodies are a bit loose and you should use a standard tie wrap pulled very tight or a SeaCure #1 mouthpiece.