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Need channel balust replaced

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Landlord from Massachusetts
Aug 28, 2020 4:15 pm

Hello I need a replacement for this block & tackle Channel ballast.

It came from a double hung window manufactured by a company called "GRAHM ARCHITECTURAL" out of New York

Ballast has imprinted number on face of the aluminum P 39-3

These double hung aluminum windows were installed in the early 90s

I can't even close them without breaking the window

I need 12 ballasts

Can you identify?

Thanks!

Jason

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2 Replies
Casey
Casey from SWISCO
Sep 1, 2020 1:14 pm
SWISCO
Expert

Hello,

It looks like you have either our S351-40, with a 15-002 bottom attachment, or S390-40, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. You'll also need a 3930 spring strength option for your replacement balances. Thank you!



Comparison of the S351 and S390 balance shoes.
Comparison of the S351 and S390 balance shoes.
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