United Kingdom Size Super Plus to US: Ultra

United Kingdom Size Super Plus: Corresponds to a Syngina fluid capacity range of 12–15 $\text{g}$, FDA absorbency tier of Super Plus Absorbency (12 to 15g), EDANA classification Super Plus / Very Heavy (12 to 15g), physical dry dimensions of 52 $\text{mm}$ length $\text{x}$ 16.5 $\text{mm}$ dia., recommended flow Heavy Flow, and format type Digital / High-Capacity Applicator.

US: Ultra: Corresponds to a Syngina fluid capacity range of 15–18 $\text{g}$, FDA absorbency tier of Ultra Absorbency (15 to 18g), EDANA classification Ultra / Maximum (15 to 18g), physical dry dimensions of 55 $\text{mm}$ length $\text{x}$ 18 $\text{mm}$ dia., recommended flow Very Heavy Flow / Overnight Protection, and format type Digital / High-Density Core Applicator.