Series 600 spiral balance

Question

I need a bunch of spiral balances. The best guess that I have is theyare the series 600 spiral balances.

The windows they are holding up are large aluminum single hungsinstalled in 1988 and I have no idea who made them.No markings on the tubes but the tubes are .56 inches in diameter andhave a black plastic tip on the end. Each sash uses 4 balances.I will need:

sash weight 53lb tube length 53 inches 16 tubes (4 sash)
sash weight 75lb tube length 53 inches 8 tubes (2 sash)
sash weight 53lb tube length 48 inches 8 tubes (2 sash)
sash weight 75lb tube length 48 inches 4 tubes (1 sash)
sash weight 48lb tube length 49 inches 28 tubes (7 sash)
sash weight 66lb tube length 49 inches 8 tubes (2 sash)

I hope this is enough information and that the attachment went through.

Tom · Accepted Answer

Thanks so much for reaching out to us. I believe we can help with this project, but we'll need a bit of time to look into some of these sizes. Neither the 53" nor the 49" lengths are standard sizes for the Series 600. I'll get back to you once we have more information.