The RPA000 is the top assembly only. For the interface bracket that attaches to your projector see SLBUW (universal) or use Chief's MountFinder to determine which model number matches your specific projector.
Independent roll, pitch and yaw for quick and precise projector registration
Quick connect/disconnect for convenient lamp and filter access on most projectors
Maintains registration when disconnected and doesn't affect preset adjustments
All-Points Security exclusive steel-into-steel locking hardware at all key connection points to protect against theft
Multiple installation options: flush mount to ceiling, mount with 0.25" threaded rods, or mount with 1.5" NPT threaded extension column