20″ x 2.5″ Poly Spun Sediment Filter – 25 micron. These economical sediment cartridges are constructed from polypropylene which is spun and melted simultaneously. This technique means there is no centre core to restrict filter performance. The cartridges are compatible with most liquids and are highly effective for sediment, rust, sand, silt, and algae removal. Sediment filters have no chemical residuals. They are extremely high performing , carry a heavy load of sediment before requiring replacement. We choose to use these sediment filters over all other types due to the high performance, high flow rate, high load capacity, and their inability to grow bacterial slime. Also suitable for filtering cooking oil.