Best Wet-Dry Shop Vacs

Once peak horsepower is set aside, two figures describe a shop vac: airflow in CFM, measured at a set opening, and water lift in inches, the height a sealed motor can pull a column of water at zero airflow. Airflow clears sawdust and drywall dust quickly; water lift is what pulls gravel, screws and standing water up the hose. The two trade against each other, since suction pressure falls as airflow rises, and both drop sharply as a filter loads up. Owners who measured the Vacmaster Beast 14-gallon ($200) report about 223 CFM and 94 inches of water lift, against about 144 CFM and 51 inches for the Ridgid 12-gallon NXT ($109). That gap is the clearest picture of what the extra money buys in a corded tank.

Tank size steps from the 3-gallon Ridgid portable ($79) and the 5- and 6-gallon Shop-Vac, Stanley, DeWalt and Craftsman tubs ($57 to $110) up to the 12-, 14- and 16-gallon drums. Smaller tanks carry in one hand and store on a shelf; the big ones roll on casters, and owners of the Vacmaster and the 16-gallon Craftsman ($150) say they get awkward to move once full. The battery models sit apart. Milwaukee's M18 PACKOUT ($189) moves 50 CFM with 47 inches of lift and runs about 30 minutes on high with an 8.0Ah pack, while the Ridgid 9-gallon cordless ($99) and DeWalt DCV581H ($199) round out the group, all sold without a battery. They replace the extension cord, not the big corded tank.

Warranty spreads wider here than in any household category: lifetime home-use coverage from Shop-Vac and Ridgid, three years from Craftsman and DeWalt, one year from Stanley and Milwaukee's PACKOUT. Running costs are mostly filters, and the recurring owner advice is to knock out or rinse the cartridge often, because none of these models has automatic filter cleaning and airflow fades over a dusty session. DeWalt DCV581H owners say its HEPA filter clogs quickly on drywall dust, and DXV06P owners warn against running it without the filter seated. Noise is the other constant: owners measured the Ridgid 12-gallon at 88 dBA, and the DeWalt Stealthsonic line is the one family here owners describe as quiet enough to talk over.