... , 110V, 20 GPM, 4" CE list Submersible Pump, Deep Well, 1/2HP, 110V, 20 GPM, 4" Features & Technical Specifications:4" deep well submersible pump, 115V, 6.5 ... thermoplastic impellers, diffusers, and intake screen.High efficiency, hermetically sealed motor is thermally protected to prevent overheatingSubmersible design eliminates the need ...