The Gordo Scientific GTR Cap is a dual-channel carb cap that combines the functionality of a Gordo Riptide Cap and a traditional bubble cap. The two chambers have been separated to create dual functionality which can be operated independently or in coordination with one another. The carb cap features two openings, one on the handle and one on the bubble. When in use; a finger placed over the opening of the handle closes the center channel activating the riptide channel. A finger placed over the opening on the side of the bubble, will activate the center channel and make the cap perform like a traditional bubble cap. This puts more control at the operator's fingertips and gives you the option to use a larger spread air stream that a riptide cap offers, the more direct straight stream that a bubble cap offers, or both at the same time. Depending on whatever your dab or glob calls for at the moment you can now switch the function, without switching carb caps.