Air Conditioner Support Bracket, Heavy Duty Window AC Bracket Universal Fit for
Heavy Duty Steel Construction: Crafted from epoxy coated premium steel, our AC window support bracket resists corrosion and stands up to harsh weather. Universal Compatibility: Designed to fit most window-mounted AC units ranging from 12000 to 24000 BTU, this window AC bracket supports wall thicknesses from 4″ to 15″ and window sill widths from 1 1/2″ to 12″ (NOTE: FOR USE ON SOLID WINDOW SILLS ONLY, NOT COMPATIBLE WITH HOLLOW OR SOFT SILLS).