window balance slide

Question

Need slides for Alenco window. The metal channel measures 23 7/8 in. or maybe a little over. Has 23 C stamped on end All shown in pictures

Casey · Accepted Answer

Hello,

It looks like you have either our S351-24, with a 15-002 bottom attachment, or S390-24, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need. You'll also need a 2330 spring strength option for your replacement balances. Thank you!

Comparison of the S351 and S390 balance shoes.