Duster fuel Cell Q's..

Your not going to get much more than that unless you go higher those dimensions figure out to be 1.56 ft3
(1.66)(1.25)(.75)=1.56 suare feet
7.48 gallons per square foot = (1.56) (7.48) = 11.67 gallons.
if you went 16" high it would give you 20.6 gallons.
there must be one out there close to these dimensions. Or have one made.