Securitech Electromechanical Mortise Lockset (LHR) Left Hand Reverse. MLY-G50-T21C-630. Exterior Trim, Mortise Lock, & Interior Trim with REX. Retrofit Exterior Trim. (630) US26D Satin Stainless Steel Finish. Less Mortise Cylinder, Handed must be ordered with correct Hand. Deadbolt Lockout Function. Mortise deadbolt lockset with electrified trim. Pass-through cylinder mounting plate. Interior REX. Field adjustable storeroom/passage function. MLY Mortise deadbolt lockset, latch, deadbolt and auxiliary latch with interior and exterior trim (see details below) G50 GG trim, standard lever, and cylinder on bottom orientation Construction passage mode feature T21C 12vDC solenoid, momentary release. Interior Request-To-Exit switch, field-adjustable classroom function.