Thanks for posting. We shall endeavor to help you again. Without seeing the pivot shoe further down the window track that these coil springs connect to, I can't be 100% certain of what you have. However I suspect that is a 15-181 Double Coil Support. This works with the 15-180 Pivot Shoe and Series 190 Coil Balances. If you're unsure of what spring weights to select for the replacement coil springs, give me the exact weight of the window sash, and I can work it out for you. Let me know what questions you have.
I'm afraid these photos don't give me any new information, but I still feel confident in my recommendation above. If you haven't already, your next step should be to compare the information we list for each part in question to your original hardware to determine how well they match up.
Thank you Bob, appreciate the info. I am about to order the parts for four windows. Your recommendation fits the old parts perfectly. Although the broken windows have a single coil support and I can't find a number on the old coils. One window ways 13 pounds and the other 18.5 lbs. Which coil numbers do you think I need? Secondly, not sure if I need the balance bushing or where that would actually go if I do. I haven't found one of those on the existing windows.
Last but not least there is a sealing strip or gasket along the bottom of the window that fits in a 1/8 inch track which needs to be replaced. They just slide into the track at the bottom , I have attached a photo .
Thanks again from a SWISCO fan.
Hello! I'm glad to hear the parts fit. I'll do my best to help you narrow down the weights.
For the 13 pound sash, I'd suggest the S190-640. These carry 6 pounds per spring so having one on each side should be sufficient. You'll be one pound off but I don't think that'll be the end of the world.
For the 18.5 pound sash, consider instead the S190-940. These carry 9 pounds each, so one on each side will give you 18 pounds of total support.
Lastly, for the seal, I don't know exactly what this may be. We sell a ton of different wool pile sizes, which you can see here, but you'll have to remove a sample of the original to determine the best option. Just note that when you measure you'll have to mentally compensate for wear. It's not going to be the same exact size it was when it was brand new.
