Four pages

Vessels

Bottles and tumblers have no NSF/ANSI 42 of their own. There is no number a seller can point at, so the space fills with adjectives instead. These four pages sort the adjectives from the two or three things about a vessel that can actually be checked across 30 listings.

Capacity and cup holders

One number is real. The other is an adjective wearing a number's clothes.

Measurable

Stated volume in ounces, which every vessel listing here gives except one that gives three

Lids and leak claims

Four states, not two. The word a seller picked is the most informative thing on the listing.

Measurable

Which of the four leak wordings each listing chose, countable across the catalog

Insulation claims

Wall construction is a build. A retention figure without conditions is a mood.

Measurable

Stated wall construction: triple wall, double wall, vacuum, or unstated

Cleaning straws and gaskets

The parts that hold water in are the parts that hold water afterwards.

Measurable

How many lid parts a listing implies: a straw, a gasket, a hinge, a slider