PPI - 10 black foam filter 2x1m 20mm thick foam PPI A - 10 filtration, easily compressible, whose major assets are based on longevity, aging resistance and its high capacity dust retention. Features: Colour: Black Dimensions: 2x1m Thickness: 20mm Grade: 10 Density Kg / m3: 20 Longitudinal tensile strength kPa 60 Transverse tensile strength kPa 60 Compressive strength at 50% kPa: 3 Packaging: filtration foam comes in a neat packaging for transport.