Stamp on the old ballance : 16 3 CALDWELL IMLength : 17 InchesChannel : 1/2 inchWindow : 35 x 35 inches
Sash Height : 18 inchesSash Weight : 12.4 pounds
Bottom fitting is 1 1/16 inch wide, but does not match the 1 1/8 inch 390 fitting.
I think it is a 17" series 390 Channel Ballance, but I'm not sure,
Window Ballance
Handy Person from Tucson AZ
Jan 19, 2026 6:39 pm
4 user uploaded images
2 Replies
Jasmine from SWISCO
Jan 20, 2026 10:44 am
Yes, it does appear the S390-17 is the correct replacement match. The shoe just appears to be worn down, so the 1-1/8" dimension will be fine.
Our 1630 stamp option will support a sash weighing 12 to 14lbs.
Close up view of the S390 balance shoe.
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