Channel balance replacement

A quick learner from Calif. says:
26/30=length/weight?
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Emily from SWISCO responded:

Hello!

Are you referring to the stamp on your balance? It indicates the weight range your balance is calibrated to support. If you'd like us to identify yours, we would need you to remove it so that we can see the top and bottom fittings to compare to our inventory. 

A quick learner from Calif. says:
I need to order 4 of these.thank you.The overall length is 28".
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Emily from SWISCO responded:

Thanks for the additional pictures! It looks like you have our S380-27 or S385-27 channel balance. The Series 380 has a 1" deep shoe and the Series 385 has a 1-3/32" deep shoe. You'll need to measure as shown in the image below to see which one matches best. You will also need the 2640 strength option, based on your 26 4 stamp. 

All orders can be placed on our website at your convenience!

Comparison of the S380 and S385 balance shoes.
Comparison of the S380 and S385 balance shoes.
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