Hydrophobic Polytetrafluoroethylene membrane filter discs eCl@ss: 32031602 NACRES: NB.24 Pricing and availability is not currently available. Properties material PTFE membrane plain filter white filter Agency in accordance with NIOSH 2011 sterility non-sterile feature hydrophobic manufacturer/tradename Millipore Mitex™ parameter 260 °C max. temp.