Emtek EMP4219 Hercules Knurled Full Length Single Cylinder Entrance Handleset – Brass Tubular – EMPowered UpgradeCan be ordered with any Brass Knob or Lever for the inside trimSold as a complete set. Includes Latch and Strike PlateStandard 2-1/8″ Door Prep. Door Prep 5-1/2″ Center-to-CenterSchlage C KeywayStandard latch is for 2-3/8″ backset. Specify 2-3/4″ backset if requiredHanding required if Lever used on inside or if Interconnect device is specifiedWeiser (WR5) KeywaySpecify by adding “W” to the beginning of Product Code for Weiser (WR5) Keyway.No upcharge for cylinder substitution. Can be keyed into existing Weiser system.Specifications:Cross Bore: 2-1/8″Door Thickness: 1-3/8″ to 2-1/4″Battery: 4 AA batteriesConnectivity: Bluetooth / Works with Yale Access AppManufacturer Resources:EMTEK F20 Mortise Lock Installation InstructionsEMTEK F13 Mortise Lock Installation InstructionsEMTEK Brass UL Mortise Entrance Handlesets Dimensions & Technical SpecificationsEMTEK Mortise Entry Sets Instructions