where can I buy a replacement mouthpiece for a twin valve shotgun 2 snorkel?
Hello Tom, here is the link to the mouth piece that would work as a replacement: http://www.scuba.com/scuba-gear-37/034006/Innovative-Silicone-Regulator-Mouthpiece.html. That mouth piece is the same as a regulator mouth piece.
SCUBAPRO's classic twin-barrel design for simplified purging.
Contoured shape for surface swimming with less drag.
Rotating clear silicone mouthpiece for easy positioning and prolonged comfort.
Patented purge chamber for effortless clearing.
Elliptical barrel shape.
Soft silicone mouthpiece.
Available in Black, Blue, and Yellow