RPAUW Finish: White Features: -Integrated All-Points Security System (not available on all models). -Low profile, aesthetic design. -Roll Adjustment: +/- 4 degrees adjustment up or down. Loosen screw, adjust mount and tighten screw to hold adjustment.Pitch Adjustment: +/- 25 degrees adjustment on each side of the mount. Loosen screw, adjust mount and tighten screw to hold adjustment. Full range of pitch in a flush mount installation.Yaw Adjustment: 360 degrees can be made by turning the mount on the threaded column and securing in place with set screw. 10 degrees yaw possible on flush mount using slots in top of RPA.Mounting Methods:1. Flush Mount to suitable ceilings using the four corner slots in top of the RPA mount. RPA now allows you to flush mount without disassembly by providing suitable access for screwdrivers and socket sets. +/- 25 degrees of pitch when flush mounted. 10 degrees yaw possible on flush mount with slots in top of RPA (Hardware not included).2. 1/4'' Threaded Rod using the four corner slots in the top of the RPA. (Threaded rod not included.)3. 1 1/2'' NPT Threaded Extension Column using the threaded coupler at the top of the RPA mount. (Threaded extension column not included.)Convenient Lamp and Filter Access:Custom design of most RPA Projector brackets provides needed access for:1. Quick lamp changes2. Easy filter cleaning3. Proper projector ventilationDimensions:Quick Projector Disconnect/Reconnect To quickly and easily remove the projector from the ceiling: loosen the thumb nuts on the bracket portion of the mount and lift up and off removing projector and hanger bracket. The universal top retains the registration adjustments. This feature makes projector servicing and maintenance quick and easy without having to re-register. (Use included security Allen wrench to disconnect when thumb nuts are replaced with All-Points Security System hardware.)Chief warrants its products (excluding electric, gas cylinder, and one-way bearing mechanisms