The Viking Microfast® Quick Response Fusible Element Horizontal Sidewall Sprinkler VK308 is a small thermosensitive solder link spray sprinkler available with various finishes and temperature ratings to meet design requirements. The special Polyester and Polytetrafluoroethylene (PTFE) coatings can be used in decorative applications where colors are desired.  Refer to technical data sheet for design and installation requirements.