SATA® RPS® Multipurpose Cups save not only time, but paint and cleaning materials too. RPS cups are a vented system that allows a constant, even flowrate, color match, and film build from a full cup down to the last drop, pop the air vent open and start spraying - when you're done, close the vent. SATA’s vented RPS system is not just used for painting. It is also used for mixing, or storage of your leftover uncatalyzed basecoat. The minimal components of the cup, lid and strainer make it easy for painters to use and save clean-up time, too. www.satausa.com