Window Balance 2640

Question

Hello,  can you please help me identify which series for this 2640?

Bob · Accepted Answer

Thanks for posting. See the S380-27 or S385-27. The only difference between these two channel balances is the 'depth' of the bottom nylon shoe. See below. Measure your old balance's shoe depth to see what matches best. For a stamp option, choose 2640.

Comparison of the S378, S380 and S385 balance shoes.