Compatible for SpectraPure 1 Micron MicroTec Sediment Cartridges 4 PackSpectraPure Compatible 1 Micron MicroTec Sediment Cartridges 4 Pack. Sediment Filters are high efficiency depth gradient density filter cartridges with almost absolute micron ratings. They are strongly recommended for areas with extremely high sediment levels like NY, WA, ND, NC and IL etc. The gradient pore structure of these cartridges captures larger particles in the outer sections of the filter cartridge, while providing highly efficient and consistent removal of smaller particles in the core. Any brand names or logos are the registered trademarks of their respective owners. Any use of any brand name or model designation for this product is made solely for purposes of demonstrating compatibility.