Two channel balances

Question

The first three pictures are 25" x 1/2 (2440) , the last two are
17" x 1/2" (1630).
Before purchasing I saw several that looked alike and I want to make sure its the right ones before purchasing .

Casey · Accepted Answer

Hello,

It looks like you have either our S351, with a 15-002 bottom attachment, or S390, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. You'll also need 2440 and 1630 spring strength options for your balances. Thank you!

Comparison of the S351 and S390 balance shoes.