Alkaline wash solution (4% NaOH with detergent) for cleaning reagent probes and reaction cells on Roche/Hitachi cobas c clinical chemistry systems. Prevents carryover interference between assays, maintaining reagent and sample integrity. Compatible with cobas c 311, c 501, c 502, c 701, c 702, and COBAS INTEGRA analysers. Content: 2 × 1.8 L.