Amazon.com: Chief Mfg.Projector Ceiling Mount Hardware Mount (VCM20) : Electronics
Chief Heavy Duty Ceiling Projector Mount (Custom, Black) VCM20
Chief RPMBUW White RPA Elite Universal Projector Mount with Keyed Locking (Option B) | Touchboards
Chief KITMA018024W Chief Projector Ceiling Mount Kit with Universal Mount, 18-24" Adjustable Extension and Angled Ceiling Plate (White)" - Pro AV Warehouse
Chief KITEZ006W Universal Ceiling Projector Mount Kit, White | Full Compass Systems