Hydroflask Drinking Cup - 40 oz Wide Mouth

There are times when I need to know my water intake using a Hydroflask, to ensure I'm sufficiently hydrated. I keep a couple of them in my motorcycle panniers for longer rides.
This cup fits over the top of a standard carry lid, or on the bottom of the Hydroflask.
Graduated markings in 100 mL increments, with 50 mL tick marks.
Inside Diameter: 92.0 mm.
I print this in clear PETG to view the liquid level.

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