Tell Mfg CL100014 Brushed Chrome Passage Lever, Commercial Grade 2 heavy-duty series for use on doors 1-3/8 to 2-inch thick. Steel chassis with corrosion-resistant coating. Latch size 1-1/8 x 2-1/4-inch with square corner faceplate, 1-inch housing diameter and 1/2-inch throw. Backset 2-3/8-inch, T Strike 1-1/8 x 2-3/4 x 3/32-inch. UL Listed, 3-hour fire rated, 1-year limited warranty.