MoistureLock™ is a strip of BPA-free waterproof fabric sewn to the inside of the container that provides many benefits.
Dimensions:
1 Gallon: 6" Diameter x 7" Tall
3 Gallon: 10" Diameter x 8" Tall
5 Gallon: 12" Diameter x 9" Tall
7 Gallon: 14" Diameter x 10" Tall
10 Gallon: 16" Diameter x 12" Tall
15 Gallon: 18" Diameter x 14" Tall
20 Gallon: 20" Diameter x 15" Tall
30 Gallon: 24" Diameter x 16" Tall
larger volumes available via buildasoil.com