H2Omet 56 is a granular zero valent iron (ZVI) with a particle size distribution mainly between 45 and 600 μm, designed for injection, source zone remediation and permeable reactive barriers.

H2Omet 57 is a coarse granular zero valent iron (ZVI) with particle size mainly between 75 and 1680 μm, designed for permeable reactive barriers used in groundwater remediation.

H2Omet 68 is a coarse, high density iron powder used for environmental applications such as permeable reactive barriers.

H2Omet 86 is a high purity fine granular zero valent iron (ZVI), less than 250 µm, designed for injection, source zone remediation and permeable reactive barriers.