Casement Slider Window Air Conditioner 10,000 BTUWhatever the window typecasement, crank or horizontal slidingthis 10,000 BTU casement slider window air conditioner from Perfect Aire has you covered. Cooling areas up to 450 square feet, this unit fits like a glove in such architectural windows without having to resort to costly custom designs. Find your comfort zone with adjustable temperature settings guided by electronic controls, three fan speeds and full range air direction control. Want to