The metabo as 20l all purpose vacuum has a 20 litre tank and is ideal for construction site workshop and vehicle cleaning this commercially registered vacuum with a certification for dust class l and a 3600cm filter surface has a dust retention capacity of 99 it offers wet vacuuming with automatic shut off to avoid overfilling specification input power 1200 watt capacity wet dry 20 litre max air flow 4200 lmin max vacuum 210 mbar suction hose diameter 35mm weight 5kg