• Complete with necessary sealing hardware and flanges Lid with gasket and 4 in cast iron inlet hub with anti-corrosion coating are included with the sewage basins Centerline of hub is located 10-1/2 in from top of basin Sewage basins are watertight and gas-tight when properly installed Durable steel cover with gasket standard on simplex and duplex sewage basins One-piece, seam-free construction on all basins Ready to install for economical and simple installation Temperature rated 130 deg F

Our indoor 18'''' x 30'''' Poly Structural Foam basin is the essential component of a basement sump pit when additional capacity is desired. This basin is designed to be buried flush-to-grade and to collect unwanted water. It is ideally sized to accommodate a primary sump pump, check valve, backup pump, and high-water alarm.