EXT 18000 3-P Pond Pump

The EXT 18000-3P Pond Pump features a 3-phase motor, ideal for water feature applications requiring high flow with high efficiency in a non-submersible style pump. This pump’s oil-free, low RPM, fan-cooled motor provides quiet operation and a long life. The EXT 18000-3P Pond Pump does not include an electrical cord. The junction box on the pump motor allows for 115V or 230V electric to be customized on site to meet each project’s electrical requirements.

All EXT-3P (3-phase motors) can be used with an optional variable frequency drive.  A variable frequency drive (VFD) is a controller that varies the voltage and frequency (hertz) of the pumps motor allowing you the ability to control the pumps water flow rate.  The VFD can be used to schedule the pump to slow down during certain hours of the day to conserve electricity and speed up during other hours, such as after work or on the weekends when a larger flow over the waterfalls is desired.  It can also be configured to slowly ramp up pump speed helping to reduce stress on the plumbing fittings during when the pump is starting up. 

Aquascape has made it easy to simplify the plumbing with the EXT Pump Plumbing Kit (#48027) sold separately.

SKU: 45052 Categories: ,
Oversized Item - additional shipping fees may apply


WARNING - California Proposition 65
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This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov

Ce produit contient des produits chimiques reconnus par l'État de Californie pour causer le cancer et des malformations congénitales ou d'autres problèmes de reproduction. Pour plus d'informations, visitez www.p65warnings.ca.gov

  • Oil-free, low RPM, motor provides quiet operation and a long life
  • Totally Enclosed Fan-Cooled Motor (TEFC)
  • Junction box located on pump motor allows 115V or 230V electric to be customized on site
  • 3″ – 4 bolt flanged Inlet
  • 2″ – 4 bolt flanged discharge
  • Semi-closed vane impeller provides efficient water flow and can pass spherical solids up to .75″ in diameter
Pump Flow Chart - EXT
ModelPurchaseMax Head Height0'5'10'15'20'25'30'35'40'45'50'

Data Sheets and Drawings


EXT 12000EXT 12000-3PEXT 18000EXT 18000-3P
Item Number45049450514505045052
Maximum Flow (GPH)12,50012,50018,40018,400
Maximum Head Height (Feet)21'21'45'45'
Maximum Power (Watts)1,1007363,3001,932
Maximum Current (Amps @ Volts)10 @ 115V3.2 @ 230V30 @ 115V8.4 @ 230V
Maximum Current (Amps @ Volts)5 @ 230V1.6 @ 460V15 @ 230V4.2 @ 460V
Motor HP3/4133
10ft Power Cord*
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*All EXT Pumps power can be customized by a qualified electrician

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