You measure a water bottle cap by measuring across the inside edge of the cap.
Here's a breakdown of how to measure a water bottle cap, incorporating information from the provided reference:
- Diameter: Measure across the inside edge of the cap. For example, a 24-millimeter cap will fit a 24-millimeter bottle opening. (0:42)
- Neck Finish: This is commonly measured by thread counts (1:36). This refers to the type and number of threads on the cap and bottle neck that allow them to screw together.
Therefore, measuring a water bottle cap involves determining its diameter and neck finish.
