Horton Automatics’ smoke-rated sliding ICU systems offer versatile configurations, featuring concealed high-temperature gaskets or brush designs. Choose from track or trackless bottoms and partial or full breakout options. Self-closing mechanisms, mini-blind glass, and fire-rated panels are also available. These doors exceed NFPA 105 air infiltration standards, with select units certified ISO 14644-3 for Class 3 cleanroom applications. Door openings range from 7 ft. to 12 ft. wide.