18 in x 30 in Simplex Polyethylene Indoor Basin with 2 in Vent Steel Cover

SPECIAL ORDER ITEM. Review Returns Policy before purchase. This sewage basin and cover system is designed for standard residential, commercial, or light‑industrial wastewater applications. Built with a seamless polyethylene basin and a solid steel cover, it supports reliable below‑grade containment and drainage performance. The unit includes integrated 2 in vent and 2 in discharge ports, along with a 4 in cast iron inlet hub for flexible piping connections. Engineered to be watertight and gas‑tight when properly installed, it simplifies installation and helps maintain system integrity in typical wastewater installations.