Evolution Aqua The Cetus Sieve

4 reviews

This Evolution Aqua Cetus Sieve is best used with a pressure filter, helping to reduce the hard and large solids that enter your pond filtration system, potentially causing it damage.


  • Cetus Sieve
    code: CETUS Direct Despatch (Usually delivered in 4 days)

Product Information

The Cetus Sieve from Evolution Aqua is an excellent pre-filter that can be both gravity and pump fed. Used with a pressurised filter, it will reduce backwashing and cut down the amount of heavy solids - prolonging the life of your pond equipment.

A complete moulded unit, it boasts a flush fitted 300 micron screen which retains large pieces of waste and debris. With a maximum flow rate of 18,000 litres per hour it is perfect for use with large ponds and pools. It arrives ready to use, with flexible boots to connect to existing pipework.

The Cetus strains away large pieces of debris and waste, which means that a skimmer or bottom drain can take vast quantities of waste water without maintenance. As the water then flows to a filter, such as the Nexus Eazy/Eazy Pod, it reduces the work of these units, making them last longer and work more efficiently.

If the unit is pump fed, the sieve must be placed above pond water level, the expelled water is gravity dropped into the main filter. If gravity fed, the Cetus has a variable height inlet, thanks to the patented Pondflow regulation system. This unique feature works to allow differing water levels without causing the pump to be starved of water.

As the water is moved quickly through the sieve, oxygen enters the flow increasing vital levels and improving water quality.

Key Features:

  • Can be gravity OR pump fed.
  • Perfect fit screen so no waste can bypass.
  • Plug and Play
  • Reduces backwashing / maintenance of pressurised filters.
  • Robust one piece mould -no welded joints - no leaks!
  • Large waste collection area which slopes to sump outlet.
  • Ideal for mechanically filtering skimmer lines.
  • Patented float that gives constant flow for gravity-fed level fluctuations.
  • Tri-slot 300 micron wedge wire screen in 316L stainless steel on 100% of surface area
  • Increased levels of oxygen.

Product Max Flow Rate Inlet & Outlet - Gravity Fed Inlet & Outlet- Pump Fed Guarantee Dimensions
Cetus Sieve 18,000LPH 4" - 1.5" 1.5" - 3" 1 Year 575 x 860 x 945 mm

Latest Customer Reviews

  • Rating
    Date 07/07/2020 13:07pm
    Evolution Aqua Cetus Sieve
    Feefo Logo
    Works fine. Cleans pond well.
  • Rating
    Date 27/07/2018 03:07am
    Evolution Aqua Cetus Sieve
    Feefo Logo
    never us you again even if you have the best price which you do not have.
  • Rating
    Date 05/02/2016 14:02pm
    Evolution Aqua Cetus Sieve
    Feefo Logo
    Not connected up the unit yet but overall looks great and well built
  • Rating
    Date 14/01/2015 20:01pm
    Evolution Aqua Cetus Sieve
    Feefo Logo
    Great looking sieve. Very good design. easy cleaning it dose most of it for you.