Retainers for use within an astragal assembly as described. The astragal assembly has an astragal body with a major axis. The astragal assembly is for use in a double door entryway unit. The retainers include a retention portion configured to engage an entryway component and a mounting portion configured for placement onto the astragal body in a direction normal to the major axis. The retention portion is either a void for receiving at least one of a latch and a deadbolt, or the retention portion is a bolt pin configured to engage an entryway frame.