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The Barnes SP33 series of effluent pumps features low cost, high performance benefits from a rugged, heavy duty design. With upper and lower ball bearings and a heavy duty cast iron vortex impeller the SP33 series is robustly designed for long operational life and dependable service. They are further enhanced by a stainless steel shaft and hardware, plus an industrial grade mechanical seal. Features 1-1/2" NPT, female, vertical 1/2" spherical solids capacity Maximum shutoff head is 33 feet Maximum flow is 50 GPM 104°F Continuous Top suction design Cast iron motor housing Upper and lower ball bearings Cast iron vortex impeller with pump out vanes on back side Heavy duty industrial Type 21 carbon/ceramic seal Permanent split capacitor motor for reliable, high performance, longer motor life, greater starting torque, and lower amp draw Stainless steel hardware and shaft Automatic thermal overload protection GFCI compatible for safety CSA C/US listed 24 Month Warranty BARNES SP33 SERIES EFFLUENT PUMPS Model Comparison Chart Model Discharge (NPT) HP Voltage Float Switch Type GPM Max. Head SP33 1-1/2" 1/3 120 Manual 50 30' SP33D 1-1/2" 1/3 120 Diaphragm 50 30' SP33X 1-1/2" 1/3 120 Manual 50 30' SP33A 1-1/2" 1/3 120 Wide Angle 50 30' SP33VF 1-1/2" 1/3 120 Vertical 50 30' SP33VFX 1-1/2" 1/3 120 Vertical 50 30' SP33AX 1-1/2" 1/3 120 Wide Angle 50 30' SP33VFAL 1-1/2" 1/3 120 Vertical 50 30' SP33HTX 1-1/2" 1/3 120 Manual 50 30' https://www.pumpproducts.com/blog/barnes-sp50-series-effluent-pumps-buyers-guide/PERFORMANCE CURVES DIMENSIONS SPECIFICATIONS DIAGRAM TROUBLESHOOTING BROCHURE Barnes SP33 Series Effluent Pump Brochure SPECIFICATIONS Barnes SP33 Series Effluent Pump Specifications INSTALLATION MANUAL Barnes SP33 Series Effluent Pump Installation Manual Pump Products application engineers are standing by to help you find the right pump, as well as to provide price quotes, stocking availability and shipping information. Call our toll free number 1-800-429-0800 to speak to an expert today.