Sash Stamp Help

A home owner from west hollywood says:
August 3, 2016
Hello,

My current sash stamp doesn't match any of these. It says
29 4 EV CMC 2 and others have EU instead of EV.

Help
User submitted a photo of a window balance.
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Tom from SWISCO responded:
August 4, 2016
Thanks for posting. A stamp of 29 4 usually matches our 2940 option, but you can always weigh your sash to confirm.
A home owner from west hollywood says:
August 8, 2016
hi, now for the life of me i can not find the original part i was looking for on the site, can you send me a link to it?
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Tom from SWISCO responded:
August 10, 2016
Sure! It looks like you had posted under our S385-30 channel balance.
30" Series 385 Channel Balance
30" Series 385 Channel Balance
S385-30
$11.30
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