Peerless-AV PLCM-UNL-CP Ceiling Mount with Universal Adapter Plate and Tilt BoxThe SmartMount PLCM UNL( CP) Universal Ceiling Mounts utilize 1. 5" NPT extension pipes for versatility, support, and connection. The 1. 5" NPT threaded pipes make it simple to customize each mount to your specific application. The PLCM UNL kit combines the PLP UNL Universal I Shaped Adaptor plate, the PLCM 2 tilt box, and the EXT103 fixed length 1. 5" NPT column, to deliver a drop of 36" for display mounting patterns of up to 600 x 400mm. When