RotopaX Replacement Self Venting ECO Spout The Replacement Self Venting Spout for RotopaX Gasoline Packs offers a convenient storage solution within the RotopaX container when not in use. Features: Meets Epa/C.a.r.b. requirements Spill-proof/leak-proof Includes: Black/green self-venting childproof ECO spout with rubber gasket, and stopper Note: To use this spout, twist green ring to the un-locked position and then push or apply pressure to the spout until it slides 1/4 and the gas will flow.