100 individual Paint Preparation System Liners 16351 for the 3M PPSâ„¢ 2.0 Large cup. The 3M PPSâ„¢ system is a cleaner, faster system, safe from outside contamination and offers considerable time and solvent savings in regards to gun cleaning. The 3M PPSâ„¢ system consists of a reusable plastic cup with disposable liners and lids. With the 3M PPSâ„¢ system fitted to your spray gun, turning your Fuji turbine on, pressurises the H/O cup forcing the liner on the inside to start to collapse. This will push the paint or finish in the liner into the spray gun no matter the orientation of the spray gun. Note that this is ONLY for HVLP spray guns, NOT for compressor guns. Order cups, lids, and adaptors separately.