Dexter Stratus Privacy Door Handle Aged Bronze a locking privacy knob designed for easy installation and compatibility with all standard door preparations. This handle features a privacy function with a turn-button locking mechanism that can be secured from the inside by turning the interior turn. It is i for residential single and multi-family doors, ensuring both functionality and style with its aged bronze finish. to meet ANSI A156.2, 1996 Series 4000 Grade 3 standards and U.L. listed, it s quality and durability. The door thickness range it supports is from 1-3/8" to 1-3/4", with a universal backset fitting either 2-3/8" or 2-3/4". Although it is not ADA compliant, it universal handing and decorative trim function suitable for both left-hand and right-hand doors. The product also comes with a lifetime mechanical warranty and a 5-year finish warranty, providing peace of mind for long-term use. Model Number: