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Evolution Aqua Cetus Sieve Filter

Original price was: £795.00.Current price is: £745.00.

Cetus sieve

The Cetus sieve is a bow screen pre-filter, made using the latest rotational moulding technology. With all of its benefits and build quality, it is undoubtedly the best of its kind on the market today, regarding quality and performance! It is designed to efficiently and effectively remove large amounts of mechanical waste from a pond. It can be set-up gravity or pump fed and has many benefits over the original bow screen technology.

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Delivery: Pallet
Comes in: Box
Quantity of Product: 1

The Cetus Sieve is a standout bow screen pre-filter, crafted with state-of-the-art rotational moulding technology. Renowned for its exceptional build quality and performance, it excels in efficiently removing significant amounts of mechanical waste from ponds, establishing itself as a leader in its category.

Key Features

Versatile Setup: The Cetus Sieve offers flexible installation for both gravity-fed and pump-fed operations, catering to various filtration needs.
Pre-Filter Efficiency: By capturing large waste and debris before water enters the main filtration system, it significantly enhances overall filtration performance.
Stand-Alone Functionality: It functions independently as a surface skimmer, effectively clearing leaves and floating debris from ponds.
Compatibility: Seamlessly integrates with all filtration systems, especially complementing the Evolution Aqua Nexus filter range.
Automatic Weir Adjustment: The sieve’s weir automatically adjusts to your pump’s flow rate, optimizing filtration for gravity-fed systems.
Extended Maintenance Intervals: Reduces cleaning frequency between filters by efficiently removing organic matter, preserving water quality.
Enhanced Biological Processes: Improves biological filtration by reducing organic waste, preventing oxygen depletion and harmful compound buildup in water.


The Cetus Sieve is a top-tier bow screen pre-filter crafted using cutting-edge rotational moulding technology. Designed to efficiently remove substantial mechanical waste from ponds, it offers exceptional build quality and performance, making it the preferred choice among pond enthusiasts. It can be set up for both gravity-fed and pump-fed operations, providing versatility and ease of use.

How it Works

The Cetus Sieve’s unique Pond flow regulation system allows for variable inlet height, crucial for gravity-fed setups, preventing water starvation during pond water level drops. It effectively accepts vast amounts of waste from skimmers or bottom drains without frequent cleanings. For pump-fed setups, it is positioned above pond water level, ensuring efficient water gravity drop into the main filter.

Ideal for pre-filtration of any biological filter, including pressurized filters, the Cetus Sieve reduces excessive backwashing and maintenance due to heavy solids, ensuring a cleaner and healthier pond environment.

Additional information

Weight 40 kg