CDS Empore 2270/2370 Oil & Grease Disks feature a one-piece design composed of C18 bonded silica beads and a depth filter. This integrated structure eliminates the need for additional prefilters and filter aids. These solid phase extraction (SPE) disks enable contamination-free extractions, provide up to 90% solvent reduction, and ensure fast flow rates with accurate and reproducible results. Suitable for EPA Method 1664 oil and grease analysis in water and wastewater.