The addition of a 3M™ Performance Spray Gun Ball Valve allows a painter to quickly stop flow of liquid to the 3M™ Performance Spray Gun when the spray gun is set up as a pressure feed sprayer. This valve is recommended whenever the painter cannot easily access the pressure source (e.g. on a ladder or a long distance away). The lightweight valve is compatible with both waterborne and solvent-based coatings. It attaches to the whip hose at the bottom end of the spray gun handle. Valve has one male and one female threaded fitting. The quarter-turn handle aligns parallel to the hose when it is open, perpendicular when it closed. Use with the 3M™ Performance Spray Gun, an innovative solution designed with the industrial painter in mind. Made from an impact-resistant composite, it is one of the lightest spray guns in the industry, yet durable enough for demanding industrial conditions. Its versatile design allows painters to spray from a pressurized source or a gravity cup, and replaceable atomizing heads allow you to spray a full range of coatings while delivering like-new performance with every new nozzle.