HD Pendent and Upright sprinklers are designed for use in light and common hazards. The temperature response is standard response (5 mm glass bulb) and quick response (3mm glass bulb). The sprinklers come with a compact design, and glass bulb type, available in several different finishes and temperature ratings. The pendent sprinklers must be installed in the pendent position, and upright sprinklers are to be installed in the proper position.

Pendent Recessed Sprinklers are installed with adjustable or non-adjustable Escutcheon plates (also called Rosette plates). These are intended to be installed with finished ceilings. Escutcheon plate adjustment provides convenience in Pendent Sprinkler installation in case of areas with finished ceilings or walls.