Utilizing the light-weight and the flexibility of foam pigs, the ruggedness and sealing capabilities of cup pigs, and the abrasive cleaning action of steel brushes, the SCFP-W pig is capable of making long cleaning runs. The SCFP-W Pig is ideal for all types of cleaning operations. It is constructed from open-cell polyurethane foam with two high-grade abrasion and chemical resistant polyurethane scraper cups and carbon-steel wire brushes embedded in pig.