QualGear suspended ceiling Adapter, adjustable for 1. 5-Inch npt threaded Pipe, White, QG-PRO-PM-SCA-W #QG-PRO-PM-SCA-W mounts above false ceiling tile on standard 2'x2' or 2'x4' grid system. It is compatible to all standard 1. 5" npt threaded pipes that is weighing up to 60Lb. Hardware is included for suspension from wood or concrete surfaces. This Adapter works with qg-pro-pm-50-b or qg-pro-pm-50-w projector mount.