Graco's Replacement AP/PC/MP "B-Side" Swivel Fitting is built to handle the high-pressure environments typical of spray foam and polyurea systems, ensuring dependable material flow and efficient operation. Its compatibility with multiple Fusion gun models makes it a practical replacement part for contractors maintaining a fleet of Graco equipment. Whether used in a two-hose setup or a more complex four-hose system, this fitting helps maintain proper alignment and reduces wear on hoses and connections, extending the life of your equipment.