A container module for intermodal transportation and temporary storage of dry flowable product includes a pressure tank supported by hanger plates welded to end frames of a support frame defining a standardized container envelope. The pressure tank has a wall with a flat top center section and short flat side sections joined by upper cylindrical intermediate sections and lower cylindrical sections below the flat side sections which blend into a plurality of intersecting, downwardly discharging hoppers. Elongated beam members extending along each side of the support frame tie the hoppers together to resist bending of the suspended tank.
