Gongdong OEM centrifuge tubes are made of durable, chemical-resistant, clear polypropylene. It can be storaged at as low as -80℃ (low temperature storage limits may vary depending on the solution being stored and storage conditions). With high RCF ratings. Specifications: Models No. C-854 Capacity 8×15 ml Type of Head Swing Out No. of Tubes 8 Max. Speed 3500 rpm Max. RCF 1600 g WxDxM 380x380x295 mm Supply 220-240 Volts 50 Hz Single Phase