The newly developed Acqualine takes over the top position when it comes to triggers from MTM. This has the exact same bulky feel that got me hooked on the SG35, with internals that are upgraded beyond that of the SGS28.
Features include a live swivel in the base of the trigger to help you fight the hose, Ceramic ball for further corrosion resistance, and a plated valve. The housing of the trigger is a food grade material, meaning that it is manufactured by an ISO 9000 certified company and is of the highest composition standards.
For further information on what goes into a material being certified, consult this page regarding the determinations made by the FDA.
Note that this product does not have a Prop 65 warning