Compensates for changes in tank level due to consumption, as well as temperature related expansion and contraction. Designed to prevent vacuum build-up during use, which can disrupt fuel delivery. Also doubles as a pressure release valve for the gas tank. Investment cast 316 stainless steel construction. Two screens provide a barrier to keep unwanted contaminants from entering the tank. An integral 5/8" hose barb securely connects vent hose at a 90° angle.
