The Panasonic Ceiling Mount Attachment is required when using an existing ceiling mount bracket for a PT-DZ8700, PT-DZ110X or other 3-chip DLP projector. This attachment accompanies Panasonic ET-PKD100H, PKD100S, PKD77H, PKD75S, PKD56H, and PKD5…5S ceiling mount brackets.Product Features:Panasonic Ceiling Mount Attachment for PT-DZ8700/DW8300 For Panasonic PT-DZ8700, PT-DZ110X or other 3-Chip DLP Projector