CRL PL15535 Satin Aluminum Sliding Screen Door Closer

1" (25 mm) diameter tube is 61" (1.5 m) long to fit doors up to 60" (1.5 m) wide. Closer mounts above the screen door with two screws into the wall, and includes a bracket that attaches to the screen door with two additional screws, all supplied. Diecast end caps, and a ball bearing pulley wheel give smooth operation. End cap has an air relief screw to adjust closing speed. For existing screen doors that do not roll freely, two 1-1/4" (32 mm) diameter concave roller bearings are included in the kit, as well as a top guide. Not all doors are designed to use these parts. New original equipment rollers may need to be installed to make the door roll properly. Important Notes: Designed for Residential Sliding Screen Door Applications, not for heavy-duty commercial or institutional applications.