The Viking Model Microfast Quick Response Horizontal Sidewall Sprinkler is equipped with a fast actuating 3mm glass bulb. It is intended for installation near the wall and ceiling. The special deflector provides a water spray pattern outward in a quarter-spherical pattern. Most of the water is directed away from the nearby wall with a small portion directed at the wall behind the sprinkler. The top of the deflector is oriented parallel with the ceiling or roof. See Technical Data Sheet for further information.