The Viking VK368 Standard Response Stainless Steel Sprinklers are small, solder link standard spray sprinklers. The design consists of a solid stainless steel frame and deflector, with a solder link operating element. Approved for 165 °F (74 °C) and 205 °F (96 °C) temperature ratings. These sprinklers can withstand many harsh corrosive environments that may cause regular brass sprinklers to deteriorate.