Paul from SWISCO responded:
February 18, 2015
Thanks for posting. Looks like you have an Alpine window that used an 18-171 top sash guide. Most Alpine windows use our Series 385 balance, which appears to match yours. Just make sure everything matches up.
If you agree, I recommend our S385-31 balance with a stamp option of 3030. Two balances with this option can carry a sash weight of 16 through 23 pounds. I think you will find the sash operates more smoothly for you. |