For use in pond in conjunction with a pump, water is drawn through the filter

These filters serve two purposes, they dramatically increase the filtering ability of a pump, also the size of the foam allows micro organisms to grow inside the filter creating a biological environment.

Block pre-filters

Sort by: Product Price Default See details Block Foam Pre filter - Small 200 x 80 x 80mm 1/2" Female BSP Thread For use in pond in conjunction with a pump, water is drawn through the foam filter. Our price: AU $24.00 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Buy Now Add to wish list See details Block Foam Pre filter - Small 200 x 80 x 80mm 1/2" Male BSP Thread For use in pond in conjunction with a pump, water is drawn through the foam filter. Our price: AU $24.00 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Buy Now Add to wish list See details Block Foam Pre filter - Medium 200 x 100 x 100mm - 3/4" Female BSP Thread For use in pond in conjunction with a pump, water is drawn through the foam filter. Our price: AU $28.00 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Buy Now Add to wish list See details Block Foam Pre filter - Medium 200 x 100 x 100mm - 3/4" Male BSP Thread For use in pond in conjunction with a pump, water is drawn through the foam filter. Our price: AU $28.00 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Buy Now Add to wish list See details Block Foam Pre filter - Large 300 x 120 x 120mm 1" Male BSP Thread For use in pond in conjunction with a pump, water is drawn through the foam filter. Our price: AU $31.00 Quantity 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Buy Now Add to wish list