... , 4" Features & Technical Specifications:4" deep well submersible pump, 115V, 6.5 Amps, Heavy duty high flow: 20 GPM. That is greater ... than almost all other well pumps.Solid stainless steel body ... inside 4" ID or larger pipe/well casingHeavy-duty thermoplastic impellers, diffusers, and intake screen.High efficiency, hermetically sealed motor is ...