Custom and Universal Projector Interface Bracket for RPM Projector MountsChief offers the SLM in custom and universal interface bracket options for the RPM series of projector mounts.- For the 1st generation universal brackets see SLMO- For the newly designed 2nd generation universal brackets see SLMU- For custom interface brackets see SLMXXX or Chief's MountFinder Pro to determine which model number matches your specific projector.- Compatible with RPA Elite projector mounts- Custom and universal versions of SLM projector interface brackets available- TAA compliant