non tilt window channel balance

Question

Hi I need at least 8 of these do you have any thing in stock.  It has 29 B stamped on it. The metal part measures 30 inches  Thanks Kristen

Bob · Accepted Answer

Hello there. This appears to be either an S351-30 or S390-30. The only difference between these two balances is the depth of the bottom nylon shoe, or the 'heel-to-toe' measurement seen below, so compare both with your old hardware to see what matches best. For a stamp option choose 2920.

Comparison of the S351 and S390 balance shoes.