34 4 EU CMC 2 Window Channel Balance

A home owner from Las Vegas NV says:
Can you confirm the images attached are a 35" Series 385 Channel Balance? The markings show 34 4 EU CMC 2. Length of metal section is 35 inches and width is 9/16 inch. Should I select a stamp option?
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
I agree, our Series 385 looks like a good match. Just make sure the size of the nylon attachments match. You also have to select a stamp option. That determines how strong the spring is, which is essential. Based on your existing stamp, I would go with our 3440 option, but you may want to weigh your sash on a scale just to be sure. You can see a chart on the S385-35 store page that has a list of how much weight each option can support.
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