Abstract: A plastic container for beverages to replace a container having a round flange with a round flange diameter and which is adapted to be conveyed by air along a track with inwardly extending track rails spaced from one another a set distance. The plastic container replacing the replaced container without significant modifications to the conveying system including the inwardly extending track rails of the track. The container including a central axis, an upper mouth portion, a neck portion coaxial to the axis with a diameter, a cylindrical sidewall, a lower base and an anti-rotation flange below the upper mouth portion having a polygonal peripheral edge with a shape including a plurality of flats and a plurality of apexes each located between adjacent flats. Each apex being diametrically opposite one of the flats. The peripheral edge having a diametrical distance between each of the apexes and the flat opposite the apex.