"Tank Size" refers to the actual tank volume, and does not reflect capacity available during operation.
† "Peak Horsepower" is a term used in the wet-dry vac industry for consumer comparison purposes. It does not denote the operational horsepower output of a wet-dry vac, but rather the horsepower output of a motor, including the motor’s inertial contribution, achieved in laboratory testing. In actual use, motors do not operate at the peak horsepower shown.
‡ CFM, Water Lift, and Air Watts tested to ASTM standard at the end of included hose.