The ⚀quadra·triqua·volumel, or ⚀gallon·volume

Quantityvolume
Formal name

⚀quadra·triqua·volumel
⚀bidubqua·hand·volume

Formal abbr⚀q•t↑vmℓ 
Colloquial name⚀gallon·volume
Colloquial abbr⚀gal·vm
Derivation22=4z ⚀hand·volume
Derivation abbr22=4z ⚀hd·vm
TGM equiv

≈ 1.94z uncia·Volm

TGM equiv abbr≈ 1.94z u↓Vm
SI & USC equiv

174.8ᘔᘔ6z=232.7421875d inch3
 128.965367965368d fluid ounce
≈ 1.00754193722944d gallon

= 3.8139611220625d liter

scaling01:06:+:03:4.0000