1/2" channel

A handy person from Charlottesville, VA says:
This house was built in 1982. The only marking is '1610' stamped on the backside near the bottom. The spring was broken and I don't have it with me. I think I tossed it.

Thanks!
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Casey from SWISCO responded:

Hello,

It looks like you have either our S351-17, with a 15-002 bottom attachment, or S390-17, 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 1610 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.
A handy person from Charlottesville, VA says:
Oh, I forgot to measure the length but you were spot on: 17". Thank you, I just ordered a pair.
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