The GRACO 15B565 is a ball valve designed for use with GRACO Fusion Air Purge (AP) spray guns and certain plastic RTX guns. It is typically constructed from durable materials suitable for industrial fluid handling. Its primary function is to control the flow of air or fluids within GRACO spray equipment. Key Features: Ball Valve 1/4 inch NPT Male x Female GRACO Fusion Air Purge (AP) spray guns; Plastic RTX Guns (models 288628 & 288629) Compact design (Height: 1 inch, Length: 1.7 inches) Reliable flow control Easy to install and maintain Applications:Used in spray foam and paint application systems for controlling air or fluid flow in GRACO equipment. Installation Notes: Using genuine GRACO parts ensures optimal performance, safety, and compatibility with GRACO equipment. Ensure the valve is compatible with your specific GRACO spray gun model before installation. Follow GRACO equipment manual instructions for installation and maintenance. Regularly inspect the valve for wear or damage and replace as needed.