International Door Closers Model 212 BODY ONLY Fixed ADA (Handicap) with 8.5lb. spring tension Overhead Concealed Closer for Exterior Doors - 90 Degree Backstop with Hold-Open function for Center Hung Doors 90 Degree Backstop with (HO) Hold Open - ADA 8.5lb opening force - Exterior Door Suitable for Exterior Doors from (36" to 48" x 96") - Two Speed Control Valves Closing and Latching speeds controlled by separate regulating valves fully adjustable after instal ADA (Handicap) 8.5lb opening force. For use on center pivoted installations - UL Listed Stable hydraulic door check fluid for any climatic operation and constant lubrication