Bracket For AC Window Unit Easily Expands from 24 to 38 to Fit in Most Single or Double Hung Windows; Adapts to Exterior Wall Thickness of 4 to 11HEAVY-DUTY STEEL CONSTRUCTION Durable Premium Steel Plate Coated with Epoxy Ensures Long Lasting Support for Window Units Weighing Up to 200 lbs. QUICK CONVENIENT INSTALLATION Installs in Minutes from Inside Your Home; No Tools Drilling Ladders or Hardware Needed to Secure Bracket in Window FrameENHANCED SAFETY FEATURES Support Legs & Extension Beams Provide Extra Support Inside & Outside; Integrated Rubberized Feet Add StabilityEASY TOOL-FREE ASSEMBLY Parts Easily Lock into Each Other Without the Need for Tools; User Guide Provides Clear Instructions for
Frustration-Free AssemblyNote: Works with single or double hung windows only. Does not work with slider crank-out or casement windows.