Rim, Rim, Less Dogging, Heavy Duty Performance, Mechanical, Grade 1, Satin Chrome Finish, Door Width 48 in, Series 25, Fits Stile Width 4 1/4 in, For Door Thickness 1 3/4 in, Door Handing Non-Handed, Yes, Yes, Standards UL 305, Lockset Function Assisted Living Facilities, Banks, Office, Commercial Buildings, Retail Stores