Oase Filtomatic 25000 CWS Self-Cleaning Filter

Oase Filtomatic 25000 CWS Self-Cleaning Filter
Was £823.99 Now £569.99


Product Description


Oase Filtomatic 25000 CWS Self-Cleaning Filter

Advanced pond filter designed by OASE Engineers in Germany, the FiltoMatic 25000 filter will automatically clean itself via feedback from an intelligent digital control panel.  The control system also measures the water temperature and will regulate the amount of Ultraviolet radiation required to tackle green water issues, providing crystal clear water quality in ponds up to 25,000 Litres (approx. 5,550 Gallons).

The intelligent Filtomatic CWS Premium range of filters have been designed with state of the art technology to automatically remove phosphates, nutrients and toxins from the pond; thereby achieving biologically clear water, minimizing algae, including blanket weed (string algae) and creating a balanced eco-system in which fish, wildlife and plants will flourish.

Solid state monitoring and automatic control with energy efficient motor technology achieve power savings up to 40%; whilst keeping maintenance to a minimum. The addition of an Oxytex pond aerator will further improve the water quality and health of fish, other aquatic life and plants, and it will improve filter performance by up to 25%.



  • Max. pond volume 25000 litres (no fish); 12500 ltrs (average fish stock e.g. goldfish); 6500 ltrs Koi
  • Produces biologically clear water with the minimum of maintenance
  • Optimum biological and mechanical cleaning reliably removes sludge, nutrients and toxins
  • Intelligent control unit monitors temperature and automatically regulates UVC and sludge disposal
  • Integrated 24 watt UVC with patented cleaning rotor and oxygen enrichment
  • Up to 40 % power savings thanks to UVC unit that is activated as needed
  • Self-cleaning function through automatic sludge discharge pump
  • OASE Clear Water Guarantee due to mechanical-biological filtration and with modern UVC technology
  • Reduces string algae by continuous removal of phosphates and nutrients
  • Guaranteed for up to 3 years (2 years standard + 1 years free of charge request guarantee)
  • Easy installation
  • Virtually invisible as the filter device can be buried to 70 % of the device height
  • Interval cleaning, UVC and pump function can also be controlled manually
  • Easy-clean function of distinctive Oase filter foams without removal from filter housing is completed in minutes
  • Innovative control unit with display for the water temperature
  • Pond keeper selects optimum program for Koi, high, medium or low fish stocking levels
  • Low-maintenance and user-friendly.


Hide this filter in the garden with an Oase Filtomatic Cap XL Decorative Rock Cover

Genuine Oase Replacement Foam for the Oase Filtomatic 25000 CWS Self-Cleaning Filter

Replacement 24 Watt PLL UV Tube for the Oase Oase Filtomatic 25000 CWS Self-Cleaning Filter


Technical Data

Dimensions (L x W x H)mm380 x 580 x 720

Rated voltage 230 V / 50 Hz

Power consumption 27 watts

Power consumption cleaning 54 watts

Power cable length 10.00m

Net weight kg13.92

Guarantee (+ request guarantee)Years2 + 1

UVC power W24

Number of purple filter foams Unit 4

Number of red filter foams Unit 2

Temperature display Digital

UVC-operating hours meter 8000 h

Connection inlet 38mm

Connection inlet 1 ½”

Connections, outlet DN 75

Connections, sludge discharge DN 40

Litres per hour, min. l/h 3500

Max. flow rate l/h 6000

Suitable for ponds up to max - m³25.0

Suitable for ponds with fish stock - m³12.5

Suitable for ponds with koi - m³6.5




Courier Delivery: Next Working Day Service (for in stock items)
Courier Delivery Saturday Delivery Service
Royal Mail - First & Second class: 1-3 Working Day Service

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