SATA RPS (Rapid Preparation System) is a single-use mixing cup for painting, staining, varnishing, refilling and storing paint/stain/varnish material. No special adapter is required. It can be used for mixing and refilling, and has easy-to-read graduations. The QCC system permits quick cup change and also attaches to SATA spray guns with standard threads. No strainer is required because of the integrated cup sieve. The RPS cup weighs just 1.8 ounces and is 70 percent lighter than same size conventional cups. SATA offers adapters for other paint gun manufacturers. Call (800) 533-8016.