Concentrator refers to the amount of a substance in a defined space. Concentration is especially used for concentrating or preparing sample in batches in laboratory. - Elegant appearance, with elevation operation pane', flowmeter, waterproof button, safe and reliable - Good compatibility, suitable for test tubes (diameter 10 ~ 29mm), conical flask, centrifuge tube, the sample capacity of 1 ~ 50ml - Free up and down needle valve tube, independent adjustable - Circular turntable structure, 360-degree rotation, convenient sample support into and out of thewater bath, easy to operate