New and improved ECO spout supplied with all fuel packs sold within the U.S.A. Using the spout is easy; twist green ring to the unlocked position and then push or apply pressure to the spout until it slides 1/4" and the liquid will flow. Replacement black / green self-venting / childproof ECO spout. Leak-proof, spill-proof, and child-proof. Notes: Spout ONLY. This spout will not fit on fuel packs with bleed valves.