Direct replacement for standard RV entry door locks. Fits in a 2-3/4" x 3-3/4" cut out. Features Bauer’s SCI technology to prevent tampering with lock cylinders. Low Profile Inside Egress to prevent interference with screen door. Corrosion Resistant Lock Cylinders based on ASTM B117-09 1000 hour Salt Fog Test. Lightweight, UV Resistant with Double Sided Key. Unique Key Jacket to distinguish from other keys. Key Logo on paddle indicates when paddle is locked by alignment with lock cylinder key slot.