Window air conditioner mounting support bracket can relieves weight stress on your window frame a properly installed air conditioner window bracket minimize the risk of damage to your window, exterior wall or siding with the gulrear universal window air conditioner support bracket. 

Universal design-air conditioner support bracket support any window AC unit up to 85lbs suitable for ordinary single/double hanging windows with window sills, usually suitable for brick, cement and wood window sill , not suitable for hollow aluminum window sills.