Liberty Pumps 297 Vertical Magnetic Float 3/4 HP Mid Range Head Submersible Sump/Effluent Pump Semi-Open impeller permitting passage of solids up to 34" Permanently lubricated upper and lower ball bearing 416 stainless steel rotor shaft - Epoxy powder coat finish All fasteners - corrosion-resistant stainless steel Stainless steel bottom screen - easily removable