Viking Freedom® Residential Pendent Sprinkler VK466 is a thermosensitive, glass-bulb residential sprinkler available in several different finishes and temperature ratings to meet varying design requirements. The orifice design, with a K-Factor of 5.2 (74.9 metric*), allows efficient use of available water supplies for the hydraulically designed fireprotection system. The fast response type glass bulb and special deflector combine speed of operation and area of coverage to meet residential sprinkler standards while being aesthetically pleasing.