Affiliate disclosure: Firebusters may receive a commission if you purchase through sponsored links on this page, at no additional cost to you. Australian Wet & Dry Vacuum Buyer Guide 20L, 30L or 60L Wet and Dry Vacuum? Choosing a wet and dry vacuum is not simply a matter of buying the biggest tank or highest-wattage motor. A compact 20L vacuum can be easier to carry between the house, garage and…