Channel Balance Half-Inch length?

A quick learner says:
October 20, 2020
the length from end to end is actually 36.5 " . not including the plastic caps / should I have ordered the 37" channel ? the imprint on the channel stamped 3640 , I thought maybe that was an indicator of the correct product to order / match up.
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Bob from SWISCO responded:
October 22, 2020

Thanks for posting. If the metal channel is indeed 36-1/2" long, not including the nylon fittings, then I am afraid neither the 36" or 37" channel balances will work for you. Instead, you'll need balances with that exact length. We should be able to provide this for you via custom order. I am looking into a quote for (4) Series 390 balances, 36-1/2" in length, and with the corresponding stamp option. I'll get back to you as soon as I can with more information. 

If you want to return the standard balances you purchased, see our Return Policy here. 
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Bob from SWISCO responded:
October 23, 2020

Before we proceed further, can you show me pictures of the nylon fittings at both ends? I just want to be absolutely sure you're dealing with a Series 390. You'd be surprised what variations there are with these balances. Assuming it is a Series 390, I have a quote I can then send to you. Many thanks. 
37" Series 390 Channel Balance
37" Series 390 Channel Balance
S390-37
$13.34
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