Balances

Thanks for reaching out! It looks like you have either the S351-22 with a 1" shoe or the S390-22 with a 1-1/8" shoe. To determine which series is needed for your window, look over the dimensions from the diagram below to confirm the depth of your bottom shoe.

Comparison of the S351 and S390 balance shoes.

I am not able to cross-reference the stamp from your balance, unfortunately. So, to select the correct stamp for your balance, you'll need to obtain the exact weight of your window. One you have the window weight, you'll be able to select the stamp needed for your balances based on the weight ranges on the chart below the product description. Please let me know if your window weight does not fall between those weight ranges.