Manual sliding doors for ICU applications that exceed the air infiltration requirements of the NFPA 105 standard. Systems are available with positive latching, recessed track or trackless configurations. With concealed high-temperature gasketing or brush designs every door shipped from Horton's factory has a UL 1784 smoke-rated label applied for easy code compliance. Systems also have self-closing options with no power required and additional glazing including mini-blind glass or fire-rated panels.