I've searched however I cannot find it. I thought it would be in /email/email_template_checkout.html, however no luck..

It currently looks like this for the customer in their e-mail receipt (370 being the model):

Products
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1 x BLUE WIDGET (370) = $1.99
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The way I have my cart setup the model is only used for admin purposes, not for the customer.

Any help? Thanks!