Material: quartz glass, lid made of polyoxymethylene. Further attractive products to complete your chromatography laboratory can be found on our Chromatography page! SPE Vacuum Manifold ROTI ® X Bond Solid Phase Extraction Vacuum Manifold processes multiple samples at the same time to realize activating, loading, rinsing, eluting and other processes in SPE sample pretreatment by controlling the pressure. Features: Accuracy : individual valves control the flow rate independently and accurately Anti-pollution : anti-cross-contamination and anti-atomization vacuum chamber design Compatibility : the height of the test tube rack is adjustable to meet the needs of different capacities Convenience : the pressure gauge is installed on the upper side of sealing cover, which is easy to read Efficiency : compatible with a large capacity collector to concentrate mass samples rapidly Reliability : the vacuum chamber is formed by a quartz glass mold with uniform wall thickness and other parts are made of PTFE material, which are resistant to strong acid and alkali Stability : special designed flow channel enablet the pressure more uniform and the flow rate more stable Directions for use Pipette tips ROTILABO ® 200 µl (Art. no. 1EKA.1) can be used to protect against further cross-contamination. Delivery incl. glass cabinet with lid, lid gasket, base plate, vacuum gauge, control valve, lid feedthroughs, Luer valves, variable collection rack for tubes shorter than 105 mm with Ø10/Ø13/Ø15 mm, tubing (approx. 75 cm, 7 mm ID).