The Norton 9303BCH Door Closer Surface Mounted With Hold Open-Back Check, The 9303BC-H Is a Non-Handed, Size 3 Light Duty Commercial Door Closer Ideal For Use on Storefront Doors. Adjustable backcheck standard â€¢ Regular and top jamb mounting, Friction hold-open arm, Norton 9303BC-H Is Certified ANSI/BHMA A156.4, Grade 3. Adjustable Backcheck Cushion Valve Provides control of the door in the opening cycle, beginning at approximately 75 ° of the door opening. It slows/cushions the door opening.
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