Sash spring for a Kolbe $ Kolbe window

Question

Hi,

I have a Kolbe & Kolbe window that needs new sash springs. It has a number on the back that reads 2650 bsi and its 27" long. Do you have a match for this?

Thanks
Dennis

Paul · Accepted Answer

Hello there!

Thank you for reaching out to us. I believe we can help with this though it must be a custom order due to the way your balance mounts. We'll use the Series 770 with a 27" metal channel and install a rivet in the top hole so that it can install with the 19-030 long S-clip (sold separately). The old knife lock shoe is discontinued though so you will need to reuse it and find a way to install it on the balance. We will also use the 27F stamp option. A pair of balances with this stamp will support a sash weighing 30 to 34 pounds but you could always weigh the window sash on a scale to confirm since custom orders are nonrefundable.

With that said, I'll email you a purchase link and price quote for (2) balances that you can use to place an order on our website.

If you have any questions just let me know!