window Side-Load Single Hung Balance Spring
Home Owner from OREGON
Jul 4, 2018 5:31 pm
20 4 JP CALDWELL
1 user uploaded image
2 Replies
Tom from SWISCO
Jul 9, 2018 12:51 pm
Check out S380-21 and S385-21. One of these is yours. The difference between them is the depth of the bottom "shoe" attachment, shown below. Measure and see if you have the 1" Series 380 or the 1-3/32" Series 385. 20 4 is usually equivalent to our 2040, but you can always weigh the sash to be sure.
Comparison of 15-004 and 15-005
