Channel balances

A quick learner from Lake Havasu, az says:
October 4, 2019
Want to order a set of these. It says 2740 bsi and a nl. Think it's 385 series.
Thumbnail of the uploaded file named 20191004_155739.jpg
Thumbnail of the uploaded file named 20191004_155527.jpg
Thumbnail of the uploaded file named 20191004_155516.jpg
Profile picture of Paul
Paul from SWISCO responded:
October 8, 2019

I am actually leaning towards the S350-28 channel balance as a better replacement. Your top balance shoe is not winged, but the bottom shoe is. Looking at the Series 385, both the top and bottom shoe are winged. Take a look at the S350-28 and see if this is a better match. if so, then you can go with the 2740 option. 
28" Series 350 Channel Balance
28" Series 350 Channel Balance
S350-28
$10.97
How to Replace a Non-Tilt Channel Balance
How to Replace a Non-Tilt Channel Balance
VIDEO
WATCH >
How to Repair a Jammed Window
How to Repair a Jammed Window
VIDEO
WATCH >
How to Identify Replacement Channel Balances
How to Identify Replacement Channel Balances
VIDEO
WATCH >
How to replace a non-tilt channel balance
How to replace a non-tilt channel balance
GUIDE
READ >
Choosing a Non-tilt Channel Balance: What Will We Need?
Choosing a Non-tilt Channel Balance: What Will We Need?
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.