- Protective shipping caps and durable box construction protects the pipe during shipping.- Cable routing hole with access through pipe.- Works with flat-panel mounts and projector mounts.- Works with any 1.5" NPT ceiling plate or accessory.- Adjusts from 9 - 12 in. (228.6-304.8mm) in 1" increments on a 1.5 in. threaded pipe.The APP-0912 adjustable height suspension adapter easily connects to any Premier Mounts 1.5" NPT ceiling plate or accessory. The APP-0912 features height adjustment from 9 - 12 in. (22.86-30.48cm) in 1 in. (2.54) increments.