Graver Technologies

Stratum Series melt-blown depth filter cartridges
Stratum Series melt-blown depth filter cartridges have a four-zone design that creates a true-graded pore structure, which provides better on-stream life and flow than typical graded-density filters. The Stratum filters feature a proprietary “Cactus Core” that immobilizes all media and prevents unloading of the captured contaminant. They are constructed of 100% pure polypropylene in compliance with the FDA’s USP Class VI standard. Stratum A filters perform at 99.9% efficiency for particles in the 0.5–70 µm range, and Stratum C filters perform at 90% efficiency for particles in the 0.5–75 µm range.