Open up your kitchen with a pass-through horizontal rolling window. Choose between either one or two sashes within one continuous frame. With our double window, one sash slides left or right, bypassing the other fixed glass. The triple window operates on the left and right sashes, bypassing the center fixed glass. Picture a single hung window on its side with rollers, and you have yourself a fashionable pass-through to the exterior. This modern look boasts a high performance rating on high-impact and non-impact certifications.