IPT Cast Iron Self-Priming Centrifugal Sewage/Trash Water Pump — 4in. Ports, Model# 399C-IPT-95: Powerful and reliable, this self-priming centrifugal pump is designed for handling sewage and trash water. Its cast iron construction ensures durability, while its 4-inch ports provide ample flow capacity. Ideal for residential, commercial, and industrial applications.