Thermaco Trapzilla Model No. TZ-400, linear low-density rotationally molded polyethylene grease and oil separator(s) for below or above-ground installation, shall be ASME A112.14.3 Rated at 75 gallons (4.73 l/s) per minute peak flow, 405 pounds (183 Kg) of grease storage capacity with a flat grease separation efficiency curve, crush-resistant cylindrical walls, fully removable cover for grease and solids removal, integral non- floatation anchor ring for in-ground installation, integral horizontal baffle, laminar inlet flow diverter, separate storage compartments for grease and solids, and including as an integral part of the unit an integral gas trap and a fully removable polyethylene self-positioning keyed cover equipped with sealed thread fasteners.