What series is my window balance?

Home Owner from Corrales, NM
Markings on the balance is:   19  3   IV   CMC   7
6 Replies
Lauren
Lauren from SWISCO
SWISCO
Expert

Hello, thank you for posting,

Unfortunately the numbers on the balance do not inform on the series, only the strength of the spring needed. To further review, we will need to see pictures of the top and bottom nylon attachments. We will also need to see the inside of the metal channel where we can view the connection point between the spring and pulley system. From there we can narrow down the series for your window. Thank you! 

Home Owner from Corrales, NM
Lauren,
Hopefully these photos are sufficient..................................Richard
4 user uploaded images
Lauren
Lauren from SWISCO
SWISCO
Expert

Thank you for the pictures,

With this combination of attachments, you could have either an S380 or S385 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. 

The length of the metal channel excluding the nylon attachments should measure 20" long and you will need a 1930 stamp option. Please review and let us know if you have any additional questions! 

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

Home Owner from Corrales, NM
Lauren
It's a S380. Thanks for your help............................Richard
Lauren
Lauren from SWISCO
SWISCO
Expert

No problem! Please let us know if you have any future hardware questions. 

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