The detachable restrictors are designed for use with Securistyle Sterling and Storm hinges; for applications with 5/8 inch or 3/4 inch typical stack height.. This restrictor is designed to securely limit the window to a specific legth yet it can be released with a special key for maintenance and window cleaning by authorized personnel only. The SDR is non handed and made from austenitic 304 stainless steel. The SDR comes in length of 4, 6, 8, or 10 inch limits. Please refer to the pdf file below for correct sizing information.

Works With:

854 001 Release Key.