1000 l plastic tanks in real dimensions from BASF with different fillings.
The tanks can be bought in 2 variants:
Standard: Filled with 100 liters when purchased, disappears when emptied.
Refillable: Filled when purchased, does not disappear when emptied, can be refilled using triggers.
The colors stand for:
Red: hericid
Green: liquid fertilizer
Blue: water
Black: Fill category Liquids (water, milk, fuel, def). Empty when purchased.
As real dimensions I recommend easy load tools or pallet forks with attachers for better hold when loading, etc.