Made of virgin and reinforced polyethylene. For microbiological and chemical analysis. Compatible with all lab blender homogenizers, withstand extensive blending without tears or perforations. DNAse, RNAse and pyrogen free. Type A: with lateral filter, non-woven, pore < 250 µm. For fibrous samples such as meat, fish, fruit and vegetables Type B: with full-surface filter, non-woven, pore < 280 µm. For pasty samples, such as cheese, milk and flour. Sterilization certificate available (to be downloaded free of charge here)