Big John submersible sump pump for residential and light commercial use. The manual sump pump provides efficient and reliable service. Pump features a 1-1/2 in discharge with an 18 ft maximum head. Cast iron motor housing is oil-filled for lifetime lubrication and rapid heat dissipation. Polycarbonate cover and polypropylene volute-base. Garden Hose Adapter included for utility use. Manual operation (pump easily converted to automatic operation using the RS-5). Mechanical shaft seal. 1/3 HP/115 Volt/10 ft Power Cord. Bottom intake with screened inlet. 1-1/2 in MNPT x 1-1/4 in FNPT (31.7 mm) Reducer Bushing. Epoxy coated housing for corrosion and rust resistance. Thermal overload protection. Manufacturer No. 506271.