Viking Standard/Quick Response Extended Coverage Ordinary Hazard (ECOH) Upright Sprinkler VK570 is a thermosensitive glass bulb spray sprinkler equipped with a 14.0 (202 metric) nominal K-Factor and a special deflector.  The Polyester coatings can be used in decorative applications where colors are desired. In addition, the ENT coating has been investigated for installation in corrosive environments and is listed as indicated in the Approval Charts. Refer to technical datasheet for required design and installation criteria.