Keep the measurement definition attached
The selected sources use ninety-eight millimeters for the C-KDL626 dome family and ninety millimeters for C-KCL90. The current Karat paper-cold-cup sheet labels its diameter column as rim diameter. That is a different claim from an independently measured maximum outside edge of a detached lid. Rim Supply does not relabel the stated rim category as a caliper measurement or derive a mechanical tolerance from a product photograph.
Do not turn a ruler into a universal compatibility list
An unlisted cup described as ninety millimeters is still unknown in the local source map. A nominal number cannot identify all the details of the rim and lid relationship. The site makes no claim about measured interference, retention force or production variation. Use the exact published cup-and-lid relationship when it exists, and seek the maker’s applicable current record when the only available evidence is a generic diameter description.
Read carton dimensions as carton dimensions
The Karat specification includes case length, width and height as well as rim categories and packaging counts. Those shipping-case values are not individual lid outside diameters. A purchasing spreadsheet that copies the first width field beside a product code can therefore create a misleading measurement. Preserve the original column heading and unit when extracting specifications. Do not convert a case dimension into a cup fit or a straw-opening dimension.
Ask for the missing dimension precisely
If a dispenser, storage fixture or specialty cup requires an actual maximum outside dimension, request that exact measurement or tolerance from the relevant maker. Provide the full selected item code, not just the shape or approximate capacity. The current sources reviewed here do not settle every dimensional requirement. That gap should stay visible rather than being filled with a guessed number, a scaled image or a claim that a sample was physically tested.
Do not reverse-engineer a fit from a photo
A tilted photograph can make an outside edge look larger or smaller than its actual dimension. This site does not scale a generic image to fill a missing technical field. For a fixture that needs a maximum outside width, request that exact dimension and its definition for the selected code. The published matching-rim category is still useful for understanding the source record, but it is not a substitute for the missing fixture specification.
Sources & scope
Checked November 4, 2026. Manufacturer and retailer references support the specific statements. Dated displayed prices are not final checkout quotes, performance rankings or performance testing. This shopping reference does not replace the exact product label or qualified individual advice. Current received labels, actual fitted configuration and independent food-contact/material/compatibility/content/commerce review remain pending.
Karat / LollicupStore: C-KDL626 exact current offer and matching-cup list ↗
Karat / LollicupStore: C-KCL90 exact current offer and matching-cup list ↗
Karat: Paper Cold Cups and Lids specification, version2026.08.20 ↗
Keep reading
Why should a lid order start with the cup code? ↗
Can two sixteen-ounce cups use the same lid? ↗
What does a source-matched cup-and-lid result actually prove? ↗