A home owner from CALIFORNIA says:
I have 2 channel balances 18", 1/2" width for my Sash, non-tilt. Stamp 18 5. I'm not sure what the stamp code is for my channel. 18" 5 LBS??? I weighed my sash, it is 16.8 lbs. Was the correct ones used for the weight of my window? What weight option would I need?
According to my calculations, I think I need a 380 channel balance. All the dimensions of the Top (11/16" & 1/2") and Shoe (1/2", 15/16", 1") appear to be accurate to mine.

Thank you
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for your patience. This balance will need to be custom made. The Series 380 cannot replace it, I'm afraid. Fortunately, it's a pretty easy balance to make and we've done it many times. Thanks to your thorough information, we know just what you need. I've sent you a custom order link for 2 of these, along with a price quote.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)