A multiple-chamber container that is extrusion blow molded with a single neck finish and a method to trim the single neck finish is provided. The physical appearance of the multiple-chamber container before the trimming process differs from the multiple-chamber container after the trimming process. The multiple-chamber container includes multiple openings that are configured to engage with a single cap after the trimming process to create a seal. The multiple-chamber container may contain different materials, such as liquids, gel-like substances, granular materials, food, etc. that are not permitted to flow from one chamber to the other chamber when the cap is engaged with the chamber openings.