MWCO filters are ideal to concentrate, purify and desalt peptides, proteins, oligonucleotides, DNA and RNA. ,516-0235EA,516-0233EA,516-0229EA,516-0234EA,516-0228EA,516-0232EA,516-0236EA. This product is no longer available. Alternatives may be available by searching with the VWR Catalog Number listed above.