The National Institute on Drug Abuse requires a Unifilter 96-well Harvester SS system for radioligand binding assays, which are essential for characterizing ligand affinity and pharmacological properties at central nervous system targets. The system must include a cell harvester, pressurized wash bottle stand, vacuum pump kit, online training and support, and freight/shipping. Performance of services will be at NIH/NIDA in Baltimore, MD (333 Cassel Drive, Triad Bldg., RM 3304). Delivery is expected 30-45 days from award, and the acquisition is a firm fixed-price purchase order evaluated on a lowest price technically acceptable basis. No budget amount is specified.