You can use this DCV581H Dewalt wet/dry vacuum cordless or corded, powered by either an 18V or 20V Max battery, or an AC outlet. The washable HEPA rated wet/dry filter traps dust with 99.97% efficiency at 0.3 micron. The heavy-duty, crush-resistant, fully-integrated 5' hose provides durability and flexibility, and is easy to use. On-board hose, cord and accessory storage makes the vacuum easy to carry and transport. The 2-gallon tank capacity provides enough storage to empty a toilet or clogged pipe. Three-year limited warranty.