SWISCO - The Replacement Hardware Authority

What is My Window Balancer Weight

A handy person from Carlsbad, CA says:
See attached pictures. It looks like i have the S380-27. I cannot tell from the stamp which weight I need.
User submitted photos of a window balance.
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Tom from SWISCO responded:
Thanks for posting! A stamp of 27 4 usually corresponds to our 2740 option, but you should weigh your window sash and compare it to the S380-27's weight table just to make sure that's correct.
A quick learner from Carlsbad, CA says:
I assume you mean the 2640 Option...I weighed the window last night and it was approximately 20 lbs...
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Tom from SWISCO responded:
Actually, your metal channel may be 28", not 27. For this type of balance, the stamp tends to be one digit less than the length. A S380-28 would have a 2740 option. I recommend that you double check just in case.
A quick learner from Carlsbad, CA says:
Thanks for your help...it was 28"...
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