Replacing Window Balances

A quick learner from Florida says:

March 12, 2024

The only marking on these balances is a Q B.S.I 2830
These are off of Kinco Windows.

Thumbnail of the uploaded file named Shoe

Thumbnail of the uploaded file named Balance Shoe

Thumbnail of the uploaded file named Top Attachment

Thumbnail of the uploaded file named 2830 Stamp

Lauren from SWISCO responded:

March 13, 2024

Hello, thank you for posting,

It appears you have either our Series 351, with a 15-002 bottom attachment, or Series 390, with a 15-001 bottom attachment. Take a look and measure below to determine which balance you'll need.

The length of the metal channel excluding the nylon attachments should measure 29" long and you will need a 2830 stamp option. Please review and let us know if you have any additional questions.

Comparison of the S351 and S390 balance shoes.

29" Series 351 Channel Balance

S351-29

$11.10

29" Series 390 Channel Balance

S390-29

$11.10

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