International Door Closers 853-P &ndash; Size 3 Spring &ndash; Parallel Arm Assembly &ndash; Hydraulic Surface Mount Door Closer &ndash; Finish (DU) Storefront Bronze Size 3 Spring Power - Parallel Arm - UL Listed - Hydraulic Surface Mount Door Closer Door Closer Length:8 7/8" Mounting Holes:8 3/16"x3/4" Overall Height: 4 3/4" (DU) Storefront Bronze Suitable for Exterior Doors up to: (36" Swing Out) (32" Swing In) - Interior Doors up to 42" Commercial Door Closer  Two Adjustment Valves: Adjustable closing speed  Adjustable latching speed Parallel Arm Installation - 5 year Limited Factory Warranty