Panasonic ET-PKD55S Ceiling Mount Bracket for PT-D4000/5500/5600/5700, PT-DW5000/5100 - Pro AV Warehouse
Projector Ceiling Mount for Optoma HD33 HD33-B HD300X HD3300 - Walmart.com
Tech-America.com
Motorized Projector Stand Bracket For Sony Panasonic Viewsonic Optoma Projector Holder Ceiling Projection Mount Accessories - Projector Brackets - AliExpress
Amazon.com: PCMD, LLC. Projector Ceiling Mount Compatible with Optoma UHD550X UHD60 UHD65 UHZ65 UHZ65LV with Lateral Shift Coupling (5-Inch Extension) : Electronics
Mount-It Projector Ceiling Mount for Epson, Optoma, ViewSonic LCD / DLP Projectors w/ Adjustability & Reviews | Wayfair
Mount-it! Full Motion Projector Mount With Universal Lcd/dlp Mounting For Epson, Optoma, Benq, Viewsonic Projectors | 44 Lbs. Load Capacity | White : Target