Grundfos Redi-Flo 4 Pump Rental

  • Fits in 4" wells or larger.
  • Maximum flow rate of roughly 20 gallons per minute (GPM).
  • 100 feet motor lead length.
  • Stainless steel and teflon construction.
  • Variable Frequency Drive (VFD) controller allows for fine tuning flow speed.

NOTICE: Rental rates do not include controller, see accessories area for controller pricing.

Max Liquid Flow 20 GPM
Max Depth 100 ft
Rental Rates
Daily Weekly Monthly
$170.00 $419.00 $1,191.00

The Grundfos Redi-Flo 4 is a variable speed submersible pump used for groundwater sampling and purging in 4-inch wells or larger. The Redi-Flo 4 is constructed out of stainless steel and Teflon. It is capable of pumping 20 GPM at roughly 100 feet of head. The Redi-Flo 4 controller can be powered by either 115V or 230V AC power. The default set-up for rental units is 115V AC.


Motor Lead Length 100 Feet
Horse Power 0.75 HP
Service Factor 1.50
Phase 1.0
Voltage 230 volts
Overall Length 23.25 inches
Motor Length 11.375 inches
Pump End Length 11.875 inches
Max Diameter 3.969 inches
Inlet 3.25 inches
Discharge Size 1.25 inches NPT
Weight 27 lbs
Maximum Operating Temperature 104°F (40°C)
Maximum Submergence Pressure 220 PSI
Maximum Number of Starts Per Hour 100
Minimum Recommended Flow Past Motor 0.25 ft/sec
  • Grundos Redi-Flo 4 Pump
  • 100 ft. Cable
  • Hose Clamp
  • 1" Hose Barb
  • Carrying Case
  • Instruction Manual