27" Window Channel Balance

Home Owner from California, USA
My old part has a stamp like this. Could you check and let me know which model is right for me? Thanks. 27" 1/2 wide
26-4. BA CMC 7

Thank you. Yoon
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8 Replies
Casey
Casey from SWISCO
SWISCO
Expert

With this combination of attachments, you could have either an S380-27 or S385-27 channel balance. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. You'll also need 2640 spring strength options for your replacement balances.

Thank you and let us know if you have any other questions or concerns.

Comparison of the S378, S380 and S385 balance shoes.
Comparison of the S378, S380 and S385 balance shoes.


Home Owner from California, USA
Thank you for your reply. I think I need 26" 380 channel balance with 2540 but it looks like out of stock now. Could you check your inventory when it comes back? Thank you.
Casey
Casey from SWISCO
SWISCO
Expert

To clarify, you mentioned that your balance measures 27", which would be the S380-27 with a 2640 strength option that is currently available for purchase. 

Home Owner from California, USA
I measured it wrong last time My balance is 26". So, which one do I need?
Casey
Casey from SWISCO
SWISCO
Expert

That is a bit strange since this type of balance with a 26" metal channel would normally have a stamp that started with 25. If you're sure that the metal channel is exactly 26" long, you'll need to weigh your window sash and follow the chart under the S380-26 product description to confirm the corresponding strength option. 

Home Owner from California, USA
Omg, you are right. It's 27" again! ? Thank you for your helping!
Casey
Casey from SWISCO
SWISCO
Expert

Great, then you can go with the S380-27 balance with a 2640 strength option. 

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