need recommendation for balance

Question

Please provide a recommendation for the replacement of my existing balance. photos attached. the stamp is 26 DS BSI NL 36. I measured the length it's 27 inches and it weights 32 lbs on the scale.

I ordered (#1243804) the S390-27 : 27" Series 390 Channel Balance from your site. I hope it's compatible.

I ordered it based on this post from your site, https://www.swisco.com/discussions/Please-ID-window-balance-77-100375
the stamp was very close to mine exception for the NK instead of NL.

Bob · Accepted Answer

Thanks for your patience during this busy season. If the sash is 32 pounds, then I believe the 2660 stamp would have been better than the 2665 that you purchased--I'm afraid the 2665 may be too strong. Let me know what you think.