Balance channel

A home owner from Miramar Florida says:
March 4, 2023
Please identify the balance channel attached. I was unable to take photos of them installed. Balance channel is 1/2"width by 28" long. Special marking is 2740. let me know if you need anything else.
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Jasmine from SWISCO responded:
March 6, 2023

Thanks for reaching out! This looks like it could be the Series 377 channel balance. The top fitting looks close to the 19-018 , which is what's used with this particular balance series. 

The other possible top guide would be part 19-041. Although, based on your photos I do believe you have the 19-018. Take a look at the dimensions below and let me know if they differ.

If they are the same, you'll need the S377-28 with a 2740 stamp.

Alternate view of 19-018
Alternate view of 19-018
Channel Balance Top, Pan Am
Channel Balance Top, Pan Am
19-018
$0.92
28" Series 377 Channel Balance
28" Series 377 Channel Balance
S377-28
$10.97
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