1001234 (CM-500-250) PCR PURIFICATION &GEL EXTRACT COLUMNS/COLLECTION TUBES,PK250 Ask for a quote for good deal--we got $159 for 250 column. Make buffers on your own. Contact information: Conaire Locke Customer Service Denville Scientific 84 October Hill Rd Holliston, MA 01746 Ph: 508-892-6132 Fx: 508-893-0629 Email: [email protected] www.denvillescientific.com