EIS-180 fire dampers according to 1366-2 standard with neck for easy mounting Fire dampers for rectangular duct mounting. Dampers for horizontal assembly, tested and classed EIS-180 (Integrity, Insulation and smoke leakage during 180 minutes in accordance to the European standard EN 13501-3, to comply with building regulations for fire safety. Dampers with shutting mechanism by thermal fusible link at 72ºC. An expanding joint together an air-tightness joint, as much prevent the propagation of smoke to high as to low temperature.