This vacuum operated spray device was designed for washing, rinsing and drying the interior of a UV-VIS cuvette style spectrophotometer cell. The cell washer head is made of polyethylene and the 500ml flask is made of polypropylene. The cell cleaner is capable of cleaning individual rectangular cells with lightpaths of 5mm, 10mm and 20mm. The cell washer comes complete with a 500ml flask, washer head, stopper and 1/4" wide aspirator tubing. The cell washer is ready for connection to a vacuum pump or line for cleaning or drying.