The Trigger. The Trigger is a push button, self-venting, control flow valve developed for the use with motorsport utility jugs. Manufactured in the U.S.A. Trigger Performance: Push button. Control flow. Self-venting. Over three gallons-a-minute flow. Trigger Composition: Body: Acetal plastic. Performance seals: Buna nitrile / Viton. Spring: Stainless steel. Trigger Dimensions: Length: 12-3/4" (approximate). Width: 1-3/8". Weight: 0.40 pounds.