3M PPS Series 2.0 Vented Cups are ready to use – allowing you to mix, spray, and temporarily store paints and coatings from the same cup. They come with their valves installed and closed to help prevent accidental leaks while filling. Use with any spray gun equipped to use 3M PPS Series 2.0 Cups.3M PPS Series 2.0 Vented Spray Cups can save painters time on every setup. The pre-installed air vent means there is virtually no assembly, unlike some other cups. The built-in valve is pre-set to the closed position, so there's less risk of accidental leakage while you fill the cup. Once attached to a spray gun and in use, the vent valve is marked with large, easy-to-see icons so you'll know whether the valve is open or closed. The easy-to-assemble, screw-fit connection delivers a robust, leak-free connection to lids. 3M PPS Series 2.0 Vented Spray Cups and Lid use the same spray gun connection as the legendary 3M PPS Series 2.0 Linered Cups, meaning painters can use the industry's most-versatile family of cups and filters without cumbersome changes to their spray gun.