channel window balance 2667 BSI RO 43L

Thanks for reaching out! I am sure that we can get your set up to place an order for these balances however, there is one piece of information I'll need to confirm. 

To ensure we are providing you with an accurate balance, please confirm the depth of your bottom shoe. You may use the diagram below for reference. It should be 1" or 1-1/8".

Comparison of the S351 and S390 balance shoes.