Fair Trails Enterprises Tuff Jug - Extra Spout RRS Approved by the California Air Resources board (C.A.R.B.) Wide-mouth design for easy pouring of additives and observing fuel level when filling Heavy-duty body with 5-gallon capacity Spill-proof, self-sealing spout automatically pours and shuts off as fuel level in tank fills to end of spout Spout also works with Parts Unlimited, Space Saver, Jaz, VP and Scribner Jugs