Window channel balance

Hi there. Both our S351-24 and S390-24 channel balances may work in place of your balance. These two balances look identical with the exception of the depth measurement of the bottom balance shoe. The depth measurement of the bottom shoe for the Series 351 is 1" and for the Series 390 is 1-1/8". Measure the depth of your shoe, like in the diagram below, to determine which balance is the better match. Whichever one chosen will go with the 2320 option.

Comparison of 15-001 & 15-002