The 2,150-gallon septic vacuum tank from SchellVac Equipment is constructed using 1/4-inch steel, 1/4-inch flanged and dished dome ends welded inside and out to tank shell, a full-length tank frame, one baffle, 12-inch low-profile primary shut-off, 5-gallon heated secondary moisture trap, and pressure- and vacuum-relief valves. It has four sight eyes (three rear and one front), full-length aluminum diamond-plate hose trays, 21-inch rear door, heated 4-inch intake and 6-inch discharge, and an LED light package. Various pump models are available. 877/336-0081; www.schellvacequipment.com.