This universal window air conditioner bracket is designed to support most single or double hung windows with sills, fitting 5,000 to 24,000 BTU AC units. Its tie-strut easily expands from 31.5 to 41.7 in. to adapt to different window widths. Crafted from heavy-duty steel with an epoxy-coated finish, the bracket resists rust and can hold up to 220 lbs., providing stable support through various harsh weather conditions. Users can adjust the length or position of the bracket legs, tie-strut, balance gaskets and rubber ft. to fit various window sills and AC setups, and an included bubble level helps ensure accurate leveling during installation. It offers 2 installation methods, either on the window sill or window frame, which disperses stress to reduce damage to windows, walls and frames. Non-slip silent spacers are included to further protect surfaces, and the no-drill design comes with detailed instructions and all necessary accessories for quick setup, working with brick, concrete and wood window sills but not hollow aluminum ones.