The 250-gallon holding tank from Five Peaks has a 17-inch profile that is discrete on the job site and shaped for easy transport with most pickup trucks and haulers. The durable tank comes with one 12-inch manhole cover (plus an optional second) for ease of cleaning and servicing, along with six Fernco-style fittings offering multiple plumbing configurations. Made from rotationally molded polyethylene, the holding tank has two heavy-duty grab handles for easier pickup and moving. Its sloped design prevents water from pooling along the top of the tank. 866/293-1502; www.fivepeaks.net.