Gravity Filters Gravity Filters Some of the most cost effective and low maintenance systems available. Water from the pond is pumped to the filter where it then flows through the filter- overflowing and returning to the pond via gravity. These filters must be kept above the pond- u
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Gravity Filters

Matala BioSteps External Filter

Matala Expandable gravity filter maximizes Matala® filter media performance. The rugged Biosteps 10 contains an amazing 200 sq. ft. of surface area for beneficial bacteria growth.

Combined with a cross flow design that traps and processes more debris at high flow rates, you get unparalleled mechanical and biological filtration for superior water quality.

Features of Biosteps Filter:

  • State of Art Progressive Filtration.
  • Supplied with sufficient volume of Matala® filter media with progressive densities.
  • Filter design enhances growth of different ecological communities of bacteria and plank tonic organisms that will colonies different sections of the filter.
  • Cross-Flow Pattern: Traps more dirt at high flow rates without plugging.
  • Built-In overflow safety.
  • Easy maintenance.
  • Sloped bottom with extra sink at outlet for easy draining of waste.
  • Modular design allows for future expansion.
  • Rugged construction.

Matala BioSteps External Filter

Item Ponds Up To (Gallons) Dimension (LxWxH) Max Flow
2,700
23.19" x 15" x 20.19"
1,060 gph
Oase BioTec ScreenMatic²
The successful high-performance filter - completely redesigned

The BioTec ScreenMatic2 now has a double-sealed motor and a reinforced screen for an extended service life. The new foam design and optimized water level control ensure longer filter service life, improved filtration, and reduced maintenance.

Includes
  • Intelligent cleaning sensors
    • Sensors detect the pollutant level and automatically activate the screen. An active LED display shows the required cleaning measures. Manual belt run is now possible via a push button.
  • Optimized water distributors
    • Ensures an ideal water flow over a broad range of pumps, with no clogging.
  • Sludge basket
    • Completely redesigned for greater volume and greater convenience in handling the basket. New, innovative design reduces contamination by preventing water from leaking back into the filter chamber.
  • Rubberized separator lip
    • Separates non-uniform debris.
  • Includes a cleaning brush for the belt filter
  • Features storm-safe fastening clips on lids
  • Replacement foam sets available

Oase BioTec ScreenMatic²

Item
Aquascape Pond Filter Urn

The Aquascape Pond Filter Urn is ideal for smaller ponds, including preformed ponds or container water gardens. Aquascape Pond Filter Urn can easily be incorporated into existing ponds with a 1/2" water hose connection, ideal for use with Aquascape Ultra or AquaJet Water Pumps.

  • Great add-on filtration for any size existing pond
  • Simple to use and maintain
  • The removable filter lid allows easy access for cleaning and maintenance
  • Connects to most water pumps with 1/2" connection
  • Ideal for use in smaller ponds or container water gardens up to 500 gallons
  • Quickly adds the sight and sound of trickling water to ponds without waterfalls or streams
  • Comes complete with mechanical and biological filter media

Aquascape Pond Filter Urn

Item Max GPH Pond Volume Inlet Fitting Dimensions Dimensions
400
500 gal
1/2"
20"L x 12"W x 10"H
1,100
1,500 gal
3/4"
28"L x 15.5"W x 15.5"H

Aquascape Pond Filter Urn

Item
OASE BioSmart Gravity Filters

The BioSmart Gravity Filters are a multi-stage mechanical and biological filtration system in a compact package, designed for medium ponds or for ponds with moderate biological load (some fish).

During biological filtration, the water is channeled through a series of filter foams that create a special environment by allowing the settling of beneficial bacteria. During this stage, harmful ammonia and nitrites are converted to nitrates, which support plant life in the pond.

  • Innovative Flow-Through filter design provides maximum oxygenation
  • High-surface area filter foams provide exceptional biological filtration capability
  • Distinct filter zones promote the settlement of a variety of beneficial bacterial responsible for different phases of the nitrogen cycle, which increases the conversion of harmful ammonia in your pond
  • Advanced features include the built-in cleaning indicator notifies you when the filter needs cleaned and water temperature display tells you the water temperature at all times
  • Cleaning handles for convenient maintenance allow for easy cleaning without needing to remove or manually unclog the filter foams
  • After clearing the filter foams, the sludge drain can be opened for easy removal of coarse debris from the unit
  • For best results and clear water guaranteed, use with an appropriately sized OASE pump and UV clarifier

OASE BioSmart Gravity Filters

Item Max. flow rate Sludge Drain Connection Max Pond Size (No Fish) Max Pond Size (Koi) Dimensions (L x W x H)
Up To 2700 GPH
2 in.
5000 Gal
1250 Gal
22 x 22 x 16 in.
Evolution Aqua Nexus Filtration Systems

The Nexus filtration systems deliver dramatically improved levels of clarity for ponds.

The Nexus filtration features a redesigned Eazy filter which now utilises the all new K1 Micro filter media, in a static bed, to deliver improved levels of mechanical filtration. The Nexus filter systems also use the acclaimed K1 Media in the moving bed to deliver outstanding levels of biological filtration. Together this combination of filter media work to deliver crystal clear and healthy water.

All Nexus filtration systems can be installed on pump fed or gravity fed setups depending on your pond configuration. The Nexus 220 is suitable for ponds up to 4,000 gallons while for larger ponds the Nexus 320 can be installed on ponds up to 7,500 gallons.

Evolution Aqua Nexus Filtration Systems

Item Max Pond Size Max Flow Rate Amount of K1 Micro Supplied Amount of K1 Media Supplied Volume of Water in Nexus Volume of Water in Inner Chamber Volume of Water in Outer Chamber
4,800 gal
2,640 GPH
0.63 cu ft
1.76 cu ft
134.72 Gal
27.73 Gal
106.99 Gal
9,000 gal
3,431 GPH
0.70 cu ft
3.53 cu ft
221.90 Gal
54.15 Gal
167.74 Gal
Evolution Aqua Eazy Pod

A compact member of the Nexus family, the EazyPod is a mechanical and biological filter system for garden ponds up to 5,333 gallons or Koi ponds up to 2,640 gallons. The EazyPod utilises static K1 Micro, which provides enhanced biological benefits, even when using the EazyPod solely as a mechanical waste filter.

  • Mechanical and biological filtration.
  • Very eazy to install and operate.
  • Quick and eazy cleaning cycle.
  • Works equally well pump or gravity fed.
  • Ideal as a filter on a quarantine system.
  • Also ideal for use as a pre-filter, polisher or on a skimmer line.

Evolution Aqua Eazy Pod

Item Max Pond Size with ornamental fish Max Pond Size with Koi Max Feed Rate Volume of Water in Filter Max Flow Rate AirPump UV-C Dimensions
5,333 Gal
2,640 Gal
100g-125g per day
21 Gal
2,640 gal
-
-
26"H x 28"L x 23"W
5,333 Gal
2,640 Gal
100g-125g per day
21 Gal
2,640 gal
AirPump70
-
26"H x 28"L x 23"W
2,640 Gal
2,640 Gal
100g-125g per day
21 Gal
2,640 gal
AirPump70
18 Watt PL-L
26"H x 28"L x 23"W
Evolution Aqua Eazy Pod Automatic

The EazyPod Automatic is a self-cleaning, mechanical and biological filter system for ponds up to 2,640 gallons.

The integrated control box contains an adjustable timer which initiates a cleaning cycle automatically - meaning your filter will clean itself even when you’re not there! Inside the control box, the electronic connector blocks control the automated waste valve, along with your choice of circulating pump (not supplied). It even houses an integral air pump which kicks in automatically to clean the K1 Micro media.

Crystal clear, healthy water is achieved by K1 Micro filter media, which also provides enhanced biological benefits by way of its protected surface area.

The Eazypod UV Automatic features an integrated 18 Watt UVC built in to the inlet section of the filter, helping to clear green water. Available in 2 models, users can select either the EazyPod Automatic or the EazyPod UV Automatic (with built-in 18 watt UV). 

Evolution Aqua Eazy Pod Automatic

Item Max Pond Size with ornamental fish Max Pond Size with Koi Max Feed Rate Volume of Water in Filter Max Flow Rate AirPump UV-C K1 Micro Dimensions
2,640 Gal
2,640 Gal
100g-125g per day
21 Gal
2,640 gal
Built-in inside control box
-
4.75 Gal
26"H x 24"L x 23"W
2,640 Gal
2,640 Gal
100g-125g per day
21 Gal
2,640 gal
Built-in inside control box
18 Watt PL-L
4.75 Gal
26"H x 24"L x 23"W
Evolution Aqua 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, 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.

This Cetus 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 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 (Nexus Eazy/Eazy Pod) or to a pressurised filter.

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

The Cetus sieve is a bow screen pre-filter, suitable for pre-filtration of any biological filter including all pressured filters. It is advised that all pressurised filters be pre-filtered using a Cetus to reduce excessive backwashing and maintenance due to heavy solids.

Evolution Aqua Cetus Sieve

Item Max Flow Inlet Outlet Outlet Waste Screen Dimensions
4,000 GPH
4"
1.5"
3"
300 micron
33.5"L x 22.5"W x 37"H
4,000 GPH
1.5"
4"
3"
300 micron
33.5"L x 22.5"W x 37"H
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