Hydromatic Pump Model S3W Submersible Sewage Pumps are strong cast iron units designed for residential raw sewage and light commercial applications. Residential and light commercial sewage disposal Two-vaned rounded port impellers. Offered in two speeds. Hydraulic end virtually maintenance-free. Volute seal ring replaceable in minutes. Oil-filled motor for constant bearing lubrication. Typicaly Ships in 7-10 Days.