Blue®Washer uses centrifugation to remove liquids from 96, 384 and 1536w plates, eliminating background and variability in assay data. Highly reproducible, low residual volumes < 0.3 µl/ well raise z' by 0.1-0.3 for typical cellular assays. Higher z' means more reliable compound profiles - fewer truly active compounds missed AND fewer false positives to re-screen. With a suite of magnetic carriers, Blue®Washer dramatically reduces run time and tip waste for magnetic bead assays. Blue®Washer's magnetic carriers retain magnetic beads during centrifugal evacuation, eliminating costly and time consuming liquid removal by automated liquid handlers. Adding a Blue®Washer to your ALH more than triples ALH throughput while eliminating tip waste in separation and wash steps.