Identification of Sash Balance Assemble

Question

The sash is large measuring 35" wide by 31" high by 7/16" deep. Manufacturers label says Florida Extruded Products Inc. Model name is Milestone Single hung Series 1000.

Needed parts are left and right balance assemblies. They are spring/block and tackle type. The spring and block and tackle are housed in a 1/2" by 1/2" by 1/2" -- 29" long "U-shaped channel. The channel includes what appear to be guides and stops. The spring is about 15" long. The block and tackle is about 9". Assembly instructions would also be helpful. Thanks, Dick

User submitted photos of a window balance.

Tom · Accepted Answer

Hey, thanks for posting. I've narrowed this down to two possible channel balance Series: either our Series 380 or our Series 385 balances.

Now, as you can see, there is only one difference between these two Series, and that is their bottom shoe. The Series 380 uses the 15-005 while the Series 385 uses the 15-004. I can't quite tell what you have based on your pictures, though. Please carefully compare their dimensions to your own hardware and see which is a better match.

Comparison of 15-004 and 15-005