Casey from SWISCO responded:
August 30, 2022
Hello, Unfortunately, we do not carry any sash lifts that install in an opening like yours but we do offer a few surface-mounted options, which you can view here. If you have room on each side of the opening to drill holes to accommodate the 3-5/16" installation holes of our 26-116, you may be able to use these as replacements. If you decide to give it a try, make sure to be careful when drilling the holes so that you don't accidentally hit the glass in your sash. Take a look and see what you think. |