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Little Giant CP Series Evaporative Cooler Pumps

Evaporative cooler pump designed for reliability in recirculating applications as replacement units for original equipment. For use in evaporative coolers, displays, laboratories, water transfer and other applications. All pumps include mounting bracket, low level operation and filter screen.

  • Heavy duty concentric fan-cooled motor
  • Thermal overload protection
  • Corrosion-resistant one-piece steel motor shaft
  • Universal mounting configurations
  • Moisture-proof windings
  • Oversized sleeve bearings with large oil reservoir
  • 90 Degree barbed elbow with bleed-off
  • Low pump down and recovery levels
  • Grounded plug
  • Flame retardant housing
  • Snap-off volute plate for easy cleaning
  • Mesh debris screen


Made in USA
1 year warranty
Item 540015
Item 541015
Item 542015
Max Litres per hour @ 300mm 1,162 1,900 2,131
Max Litres per minute 19 32 36
Head - or zero flow height 2.9m 3.4m 3.6m
Power usage - watts 75W 80W 90W
Voltage* 230 230 230
Amps 0.4A 0.5A 0.6A
Length x width x height (mm) 114 x 114 x 228 114 x 114 x 228 114 x 114 x 228
Power Cord length* 1.2m 1.2m 1.2m
Shaft material Stainless Steel Stainless Steel Stainless Steel
Thermal shut off (automatic) Yes Yes Yes
Outlet Fitting Stepped hose barb to suit 12.5, 16mm and 20mm hose Stepped hose barb to suit 16mm and 20mm hose Stepped hose barb to suit 16mm and 20mm hose
National warranty - Australia wide 1 year 1 year 1 year
* Please note that these pumps do not come standard with Australian plugs.


Flow rates at different pumping heights - litres per hour
Model @ 30cm @ 60cm @ 90cm @ 1.5m @ 2.1m @ 2.7m Head / Shut Off**
CP-1 1162 1090 1003 806 617   2.9m
CP-2 1,900 1,767 1,665 1,404 1,112   3.4m
CP-3 2,131 2,025 1,938 1,741 1,472 1,086 3.6m
**Head / shut off - The higher the water is pumped, the less the flow until the maximum pumping height is reached. It is critical that this is understood, this height is where the water stops flowing.

Aussie's Observations about  CP Series Evaporative Cooler Pumps

Budget • Good • Better • Best • Superior

Replacing pumps in various evaporative coolers that have stopped working.

Little Giant make the best specialty pumps for these kinds of jobs. 3 sizes available to suit different applications.

Nothing at all, Little Giant are market leaders.

Product Price Max Flow L/Minutelitres per minDimensionsLxWxH mmMax Flow L/Hourlitres per hourMax Head HeightMetersMax Suction DepthMetersInlet Thread BSPmmOutlet Thread BSPmmVoltagePower Cable LengthWattsHorsepowerFuel TypeApproved for Drinking Water AS/NZ4020Made inWarrantyYearsModel Number
Little Giant CP-3 Evaporative Cooler Pump Part Number 542015
36114 x 114 x 22821603.616 and 20mm Barbs230v1.2m90USA1542015
Little Giant CP-2 Evaporative Cooler Pump Part Number 541015
32114 x 114 x 22819203.416 and 20mm Barbs230v1.2m80USA1541015
Little Giant CP-1 Evaporative Cooler Pump Part Number 540015
19114 x 114 x 22811402.912.5, 16, 20mm Barb230v1.2m75USA1540015