Product Details:

Heights from 1/8" (3 mm) to 1-5/16" (33 mm)

CRL Flat Tapered and "MAB" Type Square Spindles to accommodate different threshold heights. Fit all CRL8300, CRL8400 andCRL8500 Series Floor Mounted Door Closers.

Important Note:

To determine the actual door clearance from finished floor, add 3/16" (5 mm) to the collar height.

Example: 1/8" (3 mm) collar height + 3/16" (5 mm) = 5/16" (8 mm) door clearance from finished floor.