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Model 72 Sump Pump

Sump and Effluent Pumps // Residential Use Sump Pumps

Model 72 Sump Pump

Submersible pump for dewatering.

Features and Benefits

  • Thermal overload protection
  • Non-corrosive, engineered plastic motor housing, pump housing and base
  • No steel sheet metal parts to rust or corrode
  • All stainless steel screws, switch arm and lower motor housing
  • Oil-free
  • 2-pole, float-operated mechanical switch
  • Solid, buoyant, polypropylene float
  • Maximum temperature for dewatering: 110 °F (43 °C)
  • Passes 3/8” (10 mm) spherical solids
  • 1-1/2” NPT discharge
  • On point: 7-3/8” (18.7 cm)
  • Off point: 3-5/8” (9.2 cm)
  • Major width: 9-1/16" (23 cm)
  • Major height: 11-13/16" (30 cm)
  • Completely submersible and hermetically sealed
  • Watertight and dust-tight
  • Automatic and non-automatic models available

Consult Factory for Special Applications:

  • Variable level float switches
  • Variable level long cycle systems
  • Alarm systems
  • Duplex systems


Reserve Powered Design.
For unusual conditions a reserve safety factor is engineered into the design of every Zoeller pump.

Product Specifications

Motor 3/10 HP
Voltage 115 V
Phase 1 Ph
Hertz 60
RPM 3450 RPM
Type Permanent split capacitor
Insulation Class B
Amps 3.1 Amps
Operation Automatic or nonautomatic
Auto On / Off Points 7-3/8" / 3-5/8" (18.7 cm / 9.2 cm)
Discharge Size 1-1/2" NPT
Solids Handling 3/8" (9 mm) spherical solids
Cord Length 9' (3 m) standard
Cord Type UL listed cord with 3-prong plug
Max Head 18' (5.5 m)
Max Flow Rate 38 GPM (144 LPM)
Max Operating Temperature 110 °F (43 °C)
Cooling Oil free
Motor Protection Auto reset thermal overload
Motor Housing Engineered plastic
Pump Housing Engineered plastic
Base Engineered plastic
Upper Bearing Ball bearing
Lower Bearing Ball bearing
Mechanical Seals Carbon and ceramic
Impeller Type Non-clogging vortex
Impeller Engineered plastic
Hardware Stainless steel
Motor Shaft 42OJ2 stainless steel
Gasket NBR
  • cCSAus

Technical Data


All installation of controls, protection devices and wiring should be done by a qualified licensed electrician. All electrical and safety codes should be followed including the most recent National Electric Code (NEC) and the Occupational Safety and Health Act (OSHA).

Selection Guide

  1. Integral float operated mechanical switch, no external control required.
  2. Single piggyback variable level float switch or double piggyback variable level float switch. Refer to FM0477.
  3. To select an appropriate basin, go to Basins.


Model Comparison Charts

  • Product Model Comparison Chart: 60hz
    model seal mode volts phase amps hp hz lbs kg
    M72 Single Auto 115 1 3.1 3/10 60 9.5 4.3
    N72 Single Non 115 1 3.1 3/10 60 9.5 4.3
    BN72 Single Non 115 1 3.1 3/10 60 9.5 4.3

Pump Performance Curves

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