Manufacturer Dorma Model BTS75V-BF-NHO Application Non Hold Open Size Adjustable from sizes 1 through 4 Mounting Floor-Concealed Hand Non-Handed U.L. Listed U.L. listed for use with fire rated doors when door swing is limited to 175 with an auxiliary stop ANSI/BHMA ANSI/BHMA A117.1 for barrier-free interior and exterior doors Warranty Limited Warranty Policy Weight 20.0000