Cellmaster™ PET (polyethylene terephthalate) roller bottles from Greiner Bio-One are more resistant to cracking than polystyrene bottles. Smooth surface is suitable for many adherent cell lines. Each bottle has graduations to 1.5 L and measures 116 mm W x 276 mm H. Non-pyrogenic to <0.06 EU/ml; irradiated for sterility. Bulk pack, 30/case.