The GRACO SE2B.1503 is a diaphragm pump designed for transferring fluids in industrial applications. While specific details for the SE2B.1503 are not directly available, the SE2B series is constructed with a 316L stainless steel wetted section and multiple internal elastomers for compatibility with various materials and cleaning chemicals. It is intended for use in food, personal care, and pharmaceutical industries, handling abrasive and solid-laden fluids.