I had plans for hanging a new TV on the wall and wanted to keep the cable box in the other room. I wanted to run a 50 ft. HDMI cable and single CAT5 up above the drop ceiling and down to the TV. In preparation for this, i added this piece of PVC pipe to act as a conduit for the cable. Once the wall was up i could just drop the cable down this pipe and it would be right where i needed it.