GLYPHOSATE 41 (mfgr: PBI Gordon - available in 1-gal. jugs) is the only aquatic-labeled formulation of glyphosate that already contains a surfactant - to my knowledge. All of the other aquatic-glyphosate products must have a separate "aquatic-friendly" surfactant added to the tank-mix (ie. RODEO, AQUAMASTER, GLYPRO, EAGRE, RAZOR, etc.)
