So far, the only vendor that seems to have it is Amazon.com, but they show the Guyot designs 38 oz. SS bottle as being back in stock! The price is a bit high and it's not Prime eligible, but hopefully this means the product will back in the pipeline everywhere soon! I'm itching to pick up a couple but I'll wait and see if they're back or just a batch of NOS turned up.
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“I'd rather have questions that cannot be answered than answers that can't be questioned.” —Richard Feynman