GCGOODS Window Air Conditioner Support Bracket, Light Duty AC Brackets, Holds Up to 85 lbs Features: Works with any brands of Window Mounted Air Conditioner Transfers the stress and weight from window sill to bracket Makes air conditioner installation easier, quicker, and safer Safety indoor installation, just drilling into window sill Instruction sheet and all necessary hardware provided for easy installation Specifications: Length of body: 13 3/4 inch Length of leg: 8 3/4 inch Width: 3 1/4 inch Color: White Support A/C BTU ratings of: 5,000 BTU, 6,000 BTU, 7,500 BTU, 8,000 BTU, 10,000 BTU Holds up to: 85 pounds Easy Indoor Installation: Step 1 - Find the center of the window sill and mark it Step 2 - Drilling screwing holes into window sill to secure the concave block Step 3 - Add round spacer and extra flat spacers to adjust and fit your window in height. Put the supporting body and apply screws(not fully fasten). Apply the rubber pad to the bracket leg, then adjust in place Step 4 - Final mounting, please make sure the bubble is centered, and fasten the screws Step 5 - Please install your window air conditioner following manufactures instruction, perfect done Please Note: 1 - Wall thickness should between 4 to 13 2 - Cannot be installed with hollow aluminum sill and casement windows 3 - The bracket should be installed with a slight tilt down for condensate draining - Universal Design - This air conditioner support bracket is designed to support most window air conditioner units on hung window, compatible with air conditioner window unit 5,000 to 12,000 BTU - Release Stress - Transfers the stress and weight from window sill to the window ac bracket for safety, max loading capacity 85 lbs - Sturdy and Durable - The air conditioner support bracket is made of heavy duty steel constructed finish with a nice powder coating surface treatment, light weight with sturdy structure, designed for long term outdoor service - Safety Indoor Installation - Just drill the window ac bracket into window sill, no drilling of outside wall. Built-in bubble level to adjust mounting angle. All necessary hardware and instruction sheet are included - Wall Thickeness Requirements - Window Units Air Conditioner Brakcet fits wall thickness from 4 to 13 with cement, wood and brick sills, NOT fits for hollow aluminum sills, casement windows