【Easy to Instal & Use】 Features a one-piece, no-assembly design. imply screw the spout irectly onto your gascan’s threaded opening—it’s quick, straightforward, and requires no extra tools. 【Wide Application & Great Compatibility】 Designed to fit most 1, 2, 5, and 10-gallon fuel jugs (like Midwest andScepter) with 1.75″-1.8″ opening threads.