The UltraCW II from Helmer Scientific is a next-generation automatic cell washing system for hospital blood banks and clinical labs. It automates typical tube testing blood bank workflow steps, removing plasma and unwanted antibodies from blood cells for pre-transfusion testing procedures. These screening tests are critical to avoid adverse effects that may be associated with transfusions. Designed for precise, consistent, and reproducible blood cell washing results, the system also incorporates an intuitive, full-color touchscreen for easy programming and operation. The UltraCW II incorporates an electronic flow meter for precise saline fills required for reliable results. In addition, the system uses a powerful diaphragm pump that allows the saline supply to be located either above or below and is directly connected to the cell washer, eliminating common installation challenges and inconvenient saline transfer steps for blood bank personnel.