The FlowStar® Skimmer with Water Stop Face and 4'' Suction Port is designed for commercial and residential pools with a flow range of 15-90 GPM. It includes an adjustable collar, new weir clip lock, and a standard basket with a lock-in feature to prevent floating. Underwater dampers on the faceplate reduce weir door noise caused by wind and waves. The upper housing is made from high-strength engineered polymer, and the lower unit is extra heavy-duty PVC without the need for transitional glue. This model includes a 4'' suction port for specific plumbing applications.