2720 BSI Channel Balance

Hello,

we'd be happy to helo but we would need to see photos of your balance removed from the window, including both end fittings and the clip at the end of the pulley cord, to confirm the correct replacment. Thank you!

Thanks for getting back to us. Your first batch of photos resembles the S350-28 channel balance that has wings on the bottom fitting but not on the top. You may want to check to make sure that the wings didn't break off of the top fitting since it doesn't match the balances in your second batch of photos. 

Your additional photos could be either the S380 or S385 channel balance that has wings on both fittings. You’ll need to measure as shown below. The Series 380 has a 1" bottom attachment, and the Series 385 has a 1-3/32" attachment. 

You'll also need 2720 spring strength options for your replacement balances. Thank you and let us know if you have any other questions or concerns.

Comparison of the S380 and S385 balance shoes.

We're happy to help. If you'd like to send back the other two balances once you confirm the correct shoe depth, you can find our return policy here.