Sturdy disposable reagent reservoirs have been redesigned with trimmed base corners, deeper pour-off spouts for spill-free emptying, and a deeper, narrower "trough within a trough" to maximize reagent recovery. Sterile, pyrogen-free, RNase/DNase certified in bulk packaging. Well-marked graduated increments on the inside wall. Reagents are protected from evaporation and dust. Wide base and sturdy construction provides stability and avoids inadvertent spills. Molded corner structures allow bulk packaged units to be easily separated for use. Clearly marked for recycling.