Hello!
Our S351-29 and S390-29 come to mind. The difference between the Series is the depth of the bottom shoe so you'll have to measure as shown below. However, the balances shown here should have the same stamp if they're in the same window. Can you confirm?
If they are indeed from the same window, we will need you to weigh the window sash and tell us the precise weight. That will allow us to determine the proper stamp option for your replacements.
I'm afraid we don't have a shoe with this depth. The closest option we have is the 15-003 which is 1-3/16" deep and would require a custom order. I know this isn't ideal but it is the best we can offer. Let me know what you think along with the confirmed sash weights and we can work from there.
Yes, the S390-29 is presently in stock. As for the custom order, the price would be $12.47 per balance. Please note that custom orders are nonrefundable as well.
Great! You can place an order for the S390-29 with the 2830 stamp option on our website at your convenience. A pair of balances with this stamp will support a sash weighing 16 to 23 pounds.
The 26" balances should have a different stamp printed on the metal channel since it's a different length than your 29" balances. You would want to select the same stamp number on the old balance for your replacements.
Let me know if you have any other questions!
In that case, you must weigh the window sash on a scale to determine the proper stamp option. There's a chart under the product description on the S390-26 store page that you can use as a reference for what option to select based on the sash weight.