Ultra-Sieve 3 (Max Flow 4000GPH) Algae This filter system is perfect

This filter system is perfect for ponds of all sizes and types - the 320 is aimed at the larger ponds

This method causes the water to break up and absorb a great deal of oxygen: ideal for a biological system that demands a high level of oxygen

POND SIZE  Up to 55

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Ultra-Sieve 3 (Max Flow 4000GPH) Algae This filter system is perfectHow it works: Pond water will flow over the top of the auto adjustable dam (A). This dam is connected to the floater so its height is automatically adjusted. This system will provide that the exact amount of water that is pumped out the filter will enter the filter on the inlet. This has a number of big advantages in comparison with other sieve filters: Multiple, or bigger, inlets are possible (standard 2 x 110mm!). The upper edge of the UltraSieve