Oase AquaMax Eco Classic 18000 C

Product code: 73341
539.00 438.21 (ex. VAT)
17,600 litre per hour Controllable flow rate pump
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AquaMax Eco Classic 18000 C Pump

This adjustable filter and watercourse pumps has an integrated controller for convenient external control or it can be controlled with the Oase app.

This reliable all-rounder pumps pond water and coarse dirt particles up to 8 mm in size powerfully into a filter or feeds a stream. It works extremely economically.

A special hose adaptor with threaded collar for different hose sizes (25/32/38 mm, 1", 1 1/4", 1 1/2") is included. Environmental Function Control (EFC by OASE) protects the pump from dry running or blocking.

  • Aavailable in three controllable sizes (9000 Lph, 12000 Lph or 18000Lph)with integrated controller
  • Energy-efficient motor to help conserve energy — first-class price-performance ratio
  • Can cope with coarse debris particles up to 8 mm in size
  • Integrated controller or Oase App allows the flow rate of this pump to be adjusted to your exact requirements.

aquamax  debris

aquamax c controllable

aquamax eco classic controllable pump

aquamax app

You can control flow rate via the app or the control panel.


Dimensions (L x W x H) mm 280 x 230 x 140
Rated voltage 220 - 240 V / 50/60 Hz
Power consumption W 33 to 175
Cable length m 2.00 + 10.00
Net weight kg 6.5
Guarantee (+ request guarantee) Years 3 + 2
Max. flow rate l/min 293
Max. flow rate l/h 17600
Max. head height, metres m 5.3
Pressure-side connection mm 38
Pressure-side connection 1 ½"
Suction-side connection mm 38
Suction-side connection 1 ½"
Hose connection mm 25 / 32 / 38
Hose connection 1", 1 ¼", 1 ½"
Filter intake surface cm² 810
Max. coarse debris displacement mm 8
Electronic adjustment Yes
Setup type Can be set up underwater & dry installed

Waterfall pump selection

flow rate for waterfalls

To calculate which pump is required for a waterfall use the above graph. You need two measurements , the width of waterfall and the height of waterfall (height is vertically from top of water in pond to top of waterfall)

For example a 500mm wide waterfall which is 1000mm high, will need an Aquamax Eco Classic 9000 C pump.

aquamax eco classic c flow rates

Flow characteristics for the Oase Aquamax Classic Controllable pumps

Have a look at this video to see all that this pump can do.


Parts. Product name Product code Quantity
1 Connection kit AquaMax Eco Cl.3500-17500 21904 1
2 Rubber buffer AquaMax Eco Cl.11500/14500 21907 1
3 Filter housing AquaMax Eco Cl.3500-14500 21902 1
4 Pump housing AquaMax Eco Classic 17500 31141 1
5 Spare rotor AquaMax Eco Classic 17500 31142 1
6 Controller AquaMax Eco Classic pack. GB 76358 1

Download manual for Oase Aquamax Eco Classic C here

Brand oase
Product Code 73341
Weight 6.5kg