The SmartMount® PLCM-4 Ceiling Mount Tilt Boxes work with all 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 Tilt Boxes can be used in conjunction with Peerless-AV’s AEC or EXT columns, along with the PLP adaptor plates for custom ceiling mount applications. These tilt boxes provide -5° to 20° of forward tilt, and 360° of swivel, making it possible to find the perfect viewing angle.