Grid filters (SIEVE)

Discover our grid filters (SIEVE). In a grid filter, pond water is routed through a curved grid. The grid consists of hundreds of triangular rods spaced 0.2 or 0.3 mm (200 or 300 microns) apart. The rods are slightly angled so that the coarse waste is trapped and the 'sifted' water continues on its way. The screened water is then directed to the main filter.
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