S380 29" only marked C28

Home Owner from USA
I figured that these are s380 rails 29” long. But the only stamp on them is 28C so not sure on the weight rating to pick. 
 
Aaron
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2 Replies
Jasmine
Jasmine from SWISCO
SWISCO
Expert

Hi Aaron,

I do agree the balance you have here does look similar to the S380-29 channel balance but I believe you may have a show with a 7/8" depth. Would you be able to double check and confirm this? If my assumption is correct, the replacements will need to be a custom assembly.

Regarding the stamp, we typically recommend using the 2830 stamp option but you'll need to double check that your sash weight is 16 to 23lbs.

Profile view of a winged balance attachment
Profile view of a winged balance attachment

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