Paramount PCC2000 004552180000 Riser Assembly, 2.5"x15". Paramount’s PCC2000 in-floor pool cleaning system automatically cleans your pool while you relax. It aesthetically complements your pool’s design, virtually invisible, and eliminates the unsightly look of robotic pool cleaners. It’s patented nozzles pop up and directs a power stream of water to sweep debris to the collection zone and into the MDX-R3 drain for easy removal.