3M PPS Series 2.0 Liners are designed for use with the PPS? Series 2.0 Spray Cup System. These disposable liners save time and money in paint application ? simply remove the liner and dispose, without having to clean the cup. Available in 5 sizes, the liners fit reusable 3M? PPS? Series 2.0 Cups and Lids featuring a quarter-turn locking system.