The W350P is known for its quality, durability, efficiency and long, trouble-free service life. This 15 gallon wet vacuum is equipped with a tough, submersible solids-handling pump for continuous drainage as you vacuum. The pump is oil cooled so it can handle the most difficult particle and debris congested slurries. A combined filter/float system maximizes suction and guarantees that water and other particles do not damage the vacuum motor. The W350 is an excellent choice for high volume pick-up of most liquids and slurry.