The AMT 3994-96 Self-Priming Trash Pump is designed for applications which require high flow efficiency and solid handling capability. The AMT 3994-96 is constructed of heavy duty sand cast aluminum components featuring removable/replaceable cast iron volutes, impellers and wear plates. Simple cleanout design permits easy removal of trash and debris without disconnecting hoses. Cast iron discharge port rotates in 90° increments. An electric start option is available on many models.