YALE PB5305LN X 626 - HEAVY DUTY LEVER LOCKSET CURVED - HEAVY DUTY LEVER LOCKSET STYLE CURVED FUNCTION STOREROOM HANDLE MATERIAL HEAVY GAUGE STEEL DULL CHROME FINISH STRIKE DIM. 1-1/4 IN X 4-7/8 IN. FIRE RATED 3 HR. GRADE 2 SERIES 5300LN LOCATION TYPE COMMERCIAL BACKSET 2-3/4 IN. REQUIRED DOOR THICKNESS 1-3/8 IN TO 1-3/4 IN. KEYING KEYED DIFFERENT STANDARDS ANSI 117.1 SPECIFICATION UL LISTED - EQUAL TO G1573722