This post has pre-cut holes on opposite sides for panels to continue each way in the "line"

14 - 10703B -1-3/8" Black Aluminum Rail Ends

21 - 4045080 - 1-5/8" x

Battery: (2) 7Ah

switched and unswitched power

K41-0371-000 Front Panel Kit PVCFIT This post has pre-cut holesInfo K41 0371 000 is a CAPXLV2 Front Panel Replacement Kit. Compatible with LiftMaster CAPXLV2 Smart Video Intercom L Connected Access System. Check the installation manual or replacement parts diagram for specific part information before ordering to ensure compatibility. Genuine LiftMaster service kit. Resources K41 0371 000 Product Guide K41 0371 000 Installation Manual