These CRL Center-Hung Bottom Arms should be used with doors having a minimum 3/4" (19 mm) deep bottom door rail. Arms will accommodate most door types, and will ease centering adjustment of the door. They can be used with all CRL brand Floor Mounted Door Closers, as well as any other closer using a 7/8" (22 mm) flat tapered type spindle.
Arms for CRL8300, CRL8400, and CRL8500 Series Floor Mounted Door Closers with Flat Tapered Spindles
Designed to work with CRL Wedge-Lock Door Rail Systems
