The Atkore Terminal Adapter (vendor part 59617, Millennium part 525003) is a molded 1 in male fitting built to Schedule 40 spec for terminating PVC conduit runs into boxes and enclosures on telecom and power builds. Its non-corrosive, non-conductive construction holds up in buried and outdoor installations where standard metal hardware would corrode. Crews use it to close out conduit runs quickly without cementing extra couplers. Millennium stocks matching Schedule 40 elbows, couplers and end bells to complete the same conduit run.