These tanks were designed to fit into the Maverick line of ducted fan jets to be used when converting to a turbine powered jet. The tanks fit in conjunction with the modified inlet ducts that reduce the air flow and inlet diameter to be compatible with turbines. Jet Tech has a complete conversion package available for the Maverick class of jets. The tanks hold 60 oz. and come assembled and pressure tested with Jet Tech O-ring fuel fittings. Contact Jet Tech for more information about the available conversion package.