Double Hung Channel Balance -- Need Replacement

A home owner from California says:
Metal measures 27" long and it is 9/16" wide. Stamped on back is the following designation: "26 4 BV CMC 2".
Profile picture of Dave Sr.
Dave Sr. from SWISCO responded:

Hi there- thanks for reaching out to us! 

You either have our Series 380 or our Series 385 channel balance. The difference lies in the depth of the shoe. The series 385 balance has a 15-004 shoe, which is 1-3/32” deep while the Series 380 balance has a 15-005 shoe, which is 1” deep.

Once you determine the correct series of your balance, you'll want to select the 27" length, and the 2640 stamp "option" 

Please reference the below photo to see exactly how to measure the depth of your shoe to determine which series you have.

Comparison of 15-004 and 15-005
Comparison of 15-004 and 15-005

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