Viking Standard/Quick Response Extended Coverage Ordinary Hazard (ECOH) Pendent Sprinkler VK572 is a thermosensitive glass bulb spray sprinkler equipped with a 14.0 (202 metric) nominal K-Factor and a special deflector. The special deflector is designed to meet Ordinary Hazard density requirements for specifically listed extended areas of coverage when the required minimum water supply is provided at the sprinkler.  Refer to technical datasheet for required design and installation criteria.