|
Paul from SWISCO responded:
February 23, 2022
Hello! Take a look at our S770-30 channel balance. Your stamp doesn't match any of the options we have, however. You'll need to weigh your sash and refer to the chart under the product description on the S770-30 store page to determine the appropriate spring strength option for your balance. To mount your balance, you can use a plastic anchor, a longer screw to reach a window frame stud or drill a new hole about 1/2" below the damaged hole. |
