What is this tilt window balance?

Home Owner from Oviedo, fl 32766
Hello,

Need a replacement balance. Maybe model 770. Overall length is 22" but stamped as 21F, see pictures. Can you advise of correct replacement part?

Thanks

Bernd
User submitted photos of a window balance.
4 Replies
Paul
Paul from SWISCO
SWISCO
Expert
Thanks for posting! I agree, I think our Series 770 looks like a good match. I'm not so sure about the stamp though. What is the weight of your window sash? I'm thinking you might need a 22F option, but since that is not standard, such a balance will have to be custom made. I think it's best that we know what your window sash weight is before we go any further down that road.
Home Owner
The weight of my window sash is 29.4 lbs. Can I use a standard size, 22 inch long, and replace the spring with the one from the old balance?
Tom
Tom from SWISCO
SWISCO
Expert

Ah, I see. I do not recommend trying to switch springs. There is a lot of tension on these springs and they are not meant to be replaced like that.

I was right -- you will need a 22F option. I'm going to email you a purchase link and price quote for your review. You can use this to place an order on our website. Let us know if you have any questions!

Reply to Thread
Current Photos:
Related Products
Related Videos