Watson-Marlow peristaltic pumps have no valves, seals or glands, and the fluid contacts only the bore of an elastomeric tube. Because the tube may be sterile or resistant to aggressive chemicals , and is disposable, over one million Watson-Marlow peristaltic pumps have been sold around the world. Now the success continues with the great new620 series.\r\n\r\nWatson-Marlow designs and manufactures to ISO9001, and strives to provide nothing less than the best products, service, and knowledge. Watson-Marlow conducts its business ethically, and stands by its word, its recommendations and its products.\r\n\r\nIf you have a difficult pumping application with flow in the range of microlitres to 10 cubic metres per hour and pressures below 16 bar, we can improve your process and save you time and money. \r\n