Lauren from SWISCO responded:
September 28, 2023
Hello, thank you for posting, Your pivot shoe resembles the 15-111. Please review the dimensions to confirm a good fit! If the coil spring is a 1/2" thick, please review the Series 160 coil springs. For a 20.6 pound window, you can use (1) S160-10 coil on each side of the window. Alternate image for 15-111
Please review and let me know if you have any additional questions. |