Spring balance replacement

A home owner from Grapevine, TX says:

I know you have several different series and I want to make sure I am ordering the correct one. The length of the metal portion of the channel is 28 inches long and the marking on it is 2740. I have submitted four pictures, two of each end to make sure you can recommend the correct replacement part. Thank you, Robert 

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Casey from SWISCO responded:

Hello,

Take a look and compare the S395-28 channel balance with a 2740 strength option to your assembly. Thanks for posting! 

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