EXT 18000 Pond Pump

The EXT 18000 Pond Pump is 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 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.

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

SKU: 45050 Category:
Oversized Item - additional shipping fees may apply


  • 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

45050 EXT 18000 Data Sheet
EXT Pump Application Drawing
48027 EXT Plumbing Kit Drawing


EXT 12000EXT 12000-3PEXT 18000EXT 18000-3P
Model 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