The 400/200 slide-in from Best Enterprises is built with 304 stainless steel. It carries 400 gallons of waste and 200 gallons of freshwater. It is equipped with a 3-inch dump valve, 2-inch sight glasses, a Hypro Roller pump and motor, and a Conde Super 6 vacuum pump with a platform-mounted Honda 5.5 hp electric start engine. 800/288-2378; www.bestenterprises.net.