finding the correct window balance

Question

Hello,

I have a window balance that I am trying to find the correct replacement part for based off the stamped numbers on the old, broken window balance. I have a 20-4 BSI oa. The length is at about 20 5/8. Wondering if it would possible be the 21 inch balance and not the 20 inch.

Thanks

Casey · Accepted Answer

Hello,

We can supply your replacement balances but it will need to be a custom order due to the length, extended travel pulley system and unique combination of end attachments. The 20-5/8" length would be correct for this type of balance assembly. To determine the correct replacement, we will need to see the fitting attached to the opposite end of the metal channel, as well as the clip at the end of the pulley cord. We'll also need to confirm the number of balances that you need, with the minimum being two. Thank you!