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Ubbink LogoFiltraPure Gravity Filter (Biological & Mechanical filtration)

Ubbink FiltapureUbbink Filtopure cutaway
High capacity mechanical / biological flow through with multi chamber filters for clear ponds.
Ponds can be effected by various factors such as unconsumed fish food, decomposing vegetation and fish waste. If these pollutants are allowed to accumulate, in time they will become harmful to your fish. The use of a biological filter will remove these toxins (nitrate, ammonia) and provide good quality water with the additional benefit of reducing algae growth.

There are two types of filtration action in every bio-filter.
First is mechanical filtration
At the top of each filter is a foam, these foam physically strain the water removing particles of fish waste and debris from the water.
The second type of filtration is biological, below the foam set are bio-media called Flow cor (or Bio balls). The purpose of this media is to allow helpful bacteria to grow on it's surface. The bacteria absorbs the pollutants within the pond water and neutralize ammonia and nitrite deposits then recycles the pollutants to nitrate which is a natural plant food.

Aussie saysGood is our rating for these products

Aussie's observations

Suitable for: Any pond without a waterfall or if with a waterfall has a place at the top to hide the box
What we liked: Great value for money. It has many of the features of more expensive filters including a high outlet so half the filter can be buried if needed.
Less than ideal: Based on the price point, not much. the features match the price. Not that rugged but strong enough to do the job.
Other products of this type: Blagdon Minipond Oase Biotec
Bio-Master 2000 4000 7000
UVC lamp installed none none none
Suitable pond size See chart See chart See chart
Dimensions (cm) L x W x H 40 x 30 x 22 40 x 30 x 35 54 x 40 x 32
Filter mats 30 mm thick 1 1 3
Flocore bio media supplied yes yes yes
Bio rock for extra micro organism growth yes yes yes
Inlet hose tails supplied 12.5, 20 & 25mm 12.5, 20 & 25mm 20, 25 & 32mm
Outlet thread / hose tail size supplied 1 1/4" both 1 1/4" both 2" / 1 1/2"
Guarantee 1 year 1 year 1 year
Price -  Aust $ $109
was $139
was $159
was $179



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Total shipping per order Only $10 to any Australian Address - Prices Include GST
Trade customers - Buying for resale - Call 1800 607 388 or click > Trade contact




Confused about selecting the right pump and filter? Click here for online help

Filter selection

To choose the ideal filter for any pond you must first know the correct flow through the filter to maintain ideal water quality for your pond. (Please remember that the pond size alone does not determine the filter or pump size without first taking into account the many environmental and physical factors)

3 ways to get help to establish flow

  1. Fill in one of our e-mail help forms and let us do all the calculations for you

  2. Give us a call 1800 607 388 for expert advice

  3. Do it yourself and use our quick reference flow calculator for rough estimate

  • Step one: Establish the required flow through the filter keeping in mind waterfall** height if any, or long hose**

  • Step Two: Choose a filter from the chart below (Example if your pond requires a flow through the filter of 2,500 litres per hour, the Bio-Master 6000 would give the best result)

  • Step Three: Choose a pump, they are listed below in order of quality and suitability

Recommended flow through the filter - litres per hour

2000 4000 7000
Maximum flow - ** 1,500 2,200 4,000
Ideal flow - ** 1,000 1,800 3,500
Minimum flow 800 1,500 2,000

Suitable pumps for Bio-master filters

2000 4000 7000

Most suitable pumps**

Laguna Maxflo 2200##
Project Easy Jet 1200
Project Easy Jet 2400##
Laguna Maxflo 2200
Project Easy Jet 2400
Project Easy Jet 3000##
Project Easy Jet 4000
Laguna Maxflo 4000

Other workable pumps**

Project Easy Jet 3000

**Special note, if using a waterfall or a long hose between pump and filter the pump will need to be larger to allow for the reduced flow caused by the head (pumping height, and/or hose length) If in doubt Fill in one of our e-mail help forms and let us do all the calculations for you.
##This pump is a little too strong, unless a waterfall over 1m is in place. However, you can never have too much pond flow, so, by releasing water back into the pond through a "Tee" and flow valve added circulation is provided for the pond.