Corning® Costar® Spin-X® centrifuge tube filters Nylon membrane, pore size 0.22 μm, non-sterile Synonym (s): centrifuge columns, centrifuge tube filters, desalting columns, tube filters eCl@ss: 32119210 NACRES: NB.24 Pricing and availability is not currently available. Properties material Nylon membrane natural polypropylene cap