PGT series SH4000 aluminum single hung

Question

Hi, I need balances and top sash guides; balance sizes: 30"; 24" ; 17"

numbers stamped are only 3 digits (2 numbers-space-1 number) - windows are very heavy

17" 16 3 BSI
24" 23 4 BSI
24" 23 5 BSI
30" 29 6 BSI

researching your great site, I believe the balances to be series 380 and the top sash guide to be 18-015

Please give me your advice so I can place an order. I can try to send more photos if needed but thought this would give an idea. Didn't realize several of the photos I took were accidentally erased.
Thank you. Lou

Casey · Accepted Answer

Hello,

We'd be happy to look into this for you but we would need to see the fitting attached to the opposite end for the balance as well to confirm the correct replacement.

If both fittings are winged and the bottom fitting shown in your photos measures exactly 1" deep as shown below, I agree that the S380 would be the correct match. You would use the balance stamps to choose the corresponding strength option for each length. For example, your 17" balances would require 1630 strength options.

As for your top sash guide, we would need to see an undamaged version of yours uninstalled, along with written-out dimensions, to determine fi the 18-015 would be the best match. Thank you.

Comparison of the S378, S380 and S385 balance shoes.