The Triotank slide-in vacuum tank from T blustar is made of lightweight high-density polyethylene. It is composed of three independent versatile holding tanks, including 250-gallon upper and lower tanks and a concealed 250-gallon interior sphere. The user can chose to have 500 gallons of waste and 250 gallons of water, or 250 gallons of waste and 500 gallons of water. It comes with a Battioni Pagani MEC1600 vacuum pump, high-pressure water pump, onboard computer and anti-freeze system. Options include color or various power supplies, such as autonomous with a Honda engine or PTO. 404-719-0715; www.tblustar.com.