3M™ PPS™ Large Lids and Liners Kit contains 25 disposable lids, 25 disposable liners and 10 sealing plugs for use with the original PPS™ spray gun system, an all-in-one solution for measuring, mixing, filtering and spraying paint materials. Unlike conventional aluminum or other metal paint cup systems, with PPS™ you don’t have to mix paint in extra cups and filter it into a paint reservoir, so you waste less paint. Simply place a liner in the reusable paint cup, mix the paint, snap on the lid, attach the locking collar and you’re ready to spray. With a fresh lid and liner for each mix, there’s less risk of outside contamination. You can also increase productivity in prep and cleanup time by as much as 50% and use up to 70% less cleaning solvent over conventional paint cup systems. Each lid strains paint material with a built-in 200-micron filter, commonly used for solvent-based paint materials. Specially designed PPS™ stainless steel metal adapters let you use the PPS™ system with virtually any spray gun.