Laguna Koi Ponds

(949) 494-5107


Pre-Filters / Vortex Cetus Sieve Cetus Sieve

Laguna Koi Ponds
20452 Laguna Canyon Rd.
Laguna Beach, CA. 92651 U.S.A.
Hours of Operation:
Monday-Friday 9AM-5PM Satuday 10AM-5PM
Sunday 11AM-4PM
(949) 494-5107
Pond Calculator App for Android

Cetus Sieve

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

This Cetus Sieve has a variable inlet height using the unique patented Pondflow regulation system – for use when gravity fed. This allows water levels within the pond to drop without causing the circulating pump to be starved of water. The Cetus Sieve will allow a skimmer or a bottom drain to accept vast amounts of waste without excessive cleaning needed to be carried out. The water must then be pumped to either a normal filter above pond level or to a pressurised filter.

If pump fed, the Cetus Sieve is placed above pond water level and then the exit water is gravity dropped into your main filter.

It is advised that all pressurised filters be pre-filtered using a Cetus Sieve to reduce excessive backwashing and maintenance due to heavy solids.

  • The Cetus Sieve can be gravity OR pump fed
  • Perfect fit screen so no waste can bypass
  • Totally reliable and simple to install
  • Plug and Play – comes with flexible boots to connect to pipe work
  • Greatly reduced backwashing / maintenance of pressurised filters
  • Robust one piece mould –no welded joints – no leaks!
  • Large waste collection area which slopes to sump outlet
  • The Cetus Sieve is Ideal for mechanically filtering skimmer lines
  • Patented float that gives constant flow for gravity-fed level fluctuations
  • The Cetus Sieve has a maximum flow rate 4,700 gallons per hour
  • Tri-slot 300 micron wedge wire screen in 316L stainless steel on 100% of surface area
  • The Cetus Sieve will Increase levels of oxygen

Max Flow 4,750 gph
Inlet 4 inch Gravity Fed - 2 inch Pump Fed
Outlet 2 inch Gravity Fed - 4 inch Pump Fed
Waste 3 inch Waste
Height 37.2 inch
Width 22.4 inch
Screen 300 Microns

Owners Manual

Item #  Description Price Add to Cart
67200 CETUS SIEVE GRAVITY OR PUMP FED $1250.00 Add to Cart