Casey from SWISCO responded:
March 20, 2023
Hello, I would recommend removing your coil assembly to compare to the 15-177 pivot shoe, which uses the Series 152 coil springs. Based on your sash weight, I would recommend using one S152-4 coil on each side of the sash. Take a look and see how the specifications compare to yours. You will also be given multiple shipping options to choose from once the parts are added to your cart and you input your postal code. Thanks for posting! |