The mark consists of the product configuration of a pumping mechanism made from aluminum castings with aluminum, iron, brass, steel, composite and plastic parts. The pumping mechanism includes a bottom casting and a top cover casting. The bottom casting having a large diameter iron pulley with spokes located at the lower left section of the front, a bypass valve cover located in the lower right corner of the front, a control valve cover located directly above the bypass valve cover, a flange extending around the upper extent of the bottom casting, and legs protruding from the bottom of bottom casting. The bypass valve cover has a square shape with a cylindrical protrusion, and has for hex head fasteners located at the four corners of the square shape. The control valve cover has a square shape with a conical protrusion, and has for hex head fasteners located at the four corners of the square shape. The upper casting includes a generally flat substantially square upper surface having notches at the corners and middle of each side, side walls extending downward from the four sides of the substantially square upper surface, and a flange along a bottom extent of the top cover casting for abutting against the flange of the bottom casting and for receiving hex head fasteners that secure the bottom and top cover castings. The side walls have grooves corresponding to the notches in the upper surface and the hex head fasteners being located along these grooves where they join the flange. The top cover casting consists of approximately 50 percent of the assembled pump mechanism. An optional flanged meter mount on the upper surface of top cover casting is shown in dashed lines and does not form a part of the mark. An optional inlet port on the front side wall of the top cover casting is shown in dashed lines and does not form a part of the mark.