A system of 4 powerful reinforced magnetic blocks to place on the sand filter. Re-creates, more quickly and powerfully, the long underground journey of spring water through the earth's magnetic field. Based on the principle of magnetized water, in just a few weeks you will obtain exceptionally clear water and reduce your consumption of cleaning products!
4 strontium ferrite magnets, 6" x 4" x 1" (15 x 10 x 2.5 cm). Comes with a 2.5 metre long strap. Very easy assembly on all sand filters from 500 mm diameter.
