Oase Biotec Screenmatic Pond Filter

The Oase Biotec 12, 18 and 36 Screenmatic filters allow adjustment of the flow speed which can be adjusted as individual via a function controller attached to the water distributor on the Screenex.

The Screenmatic system can be folded up and out of the way at a 90 degree angle to provide free access to the filter sponges, it is no longer necessary to take the sponges out of the filter for cleaning. The special tool provided makes it possible to clean the sponges where they are situated in the filter.

The Oase Biotec 18 is fitted with a 50mm sludge drain outlet, operated by an internal slide valve making it easy to drain the filter. The filters can be recessed in to the ground by two thirds of its depth therefore making it easier to disguise.

The Oase Biotec 36 has an appropriately dimensioned Screenmatic and a 70mm sludge drain outlet, operated by an internal slide valve making it easy to drain the filter.

Biotec 12

• Suitable for ponds without fish up to 50,000 ltr / 11,989 gal
• Suitable for ponds with fish up to 25,000 ltr / 5,494 gal

Biotec 18

• Suitable for ponds without fish up to 60,000 ltr / 13,186 gal
• Suitable for ponds with fish up to 30,000 ltr / 6,593 gal

Biotec 36

• Suitable for ponds without fish up to 140,000 ltr / 30,769 gal
• Suitable for ponds with fish up to 70,000 ltr / 15,384 gal

Free gifts:

• Oase Biotec 12 Screenmatic with Free Velda Auto Fish Feeder, Small, (Worth £104.62 RRP)
• Oase Biotec 18 Screenmatic with Free Velda Auto Fish Feeder, Small, (Worth £104.62 RRP)
• Oase Biotec 36 Screenmatic with Free Oase Pondovac Start Pond Vac (Worth £223.99 RRP)

Please note that the free gifts are automatically added to your order.

With the new Biotec 12, 18 and 36 Screenmatic, Oase have once again set new standards for filter implementation in garden ponds. Simple operation, fast and clean maintenance with an outstanding filtration result are unique features of the new Biotec filters.

Mechanical cleaning

A specially designed sieve, the “Screenex”, retains all debris particles up to a size of 500 micron, which are pumped into the filter. After the water flows back through a special matt it is enriched with oxygen, it falls into the chamber below, flows through the filter zones, and then reaches the next filter chamber (“Individual chamber”).

Biological Cleaning

The nitrosomonas and nitrobacter bacteria present in the pond water settle and multiply in the oxygen rich filter zones (blue sponges) and in the oxygen poor zones (red sponges and individual chamber). In various biological processes they convert toxic ammonium/ammonia via nitrite to nitrate and finally to gaseous nitrogen. The individual chamber situated just in front of the outlet, is called “individual” because every consumer has the choice of which filter material to insert (i.e. Oase Phosless). The chamber is equipped as standard with Zeolite.

Long service life

With the Screenex filter process happening prior to the actual filtration, many coarse particles are removed from circulation and only lightly polluted water actually reaches the filter sponges. This makes a longer than average cleaning interval possible.

Unique Advantages

With the new Biotec 12,18 or 36 flow-through filters Screenmatic enables the Biotec 12-18-36 to remove coarse debris from the pond in a manner that is even easier and safer.

Biotec 12/18/36 Operating Instructions