It is two-piece type adjustable type with pendent sprinkler to provide low profile decorative sprinkler. Two-piece design allows the installation and testing of sprinkler prior to installation of the ceiling. Outer Cap can remove and re-install allowing access above removable ceiling panels for servicing building equipment without shutting down the sprinkler system and removing the removing the sprinkler the slip-on feature allows for minor adjustments due to pipe or ceiling pitch.