Reducing the need for pricey ball valves and brass fittings, these needle pinch valves offer an effortless alternative. With no fitting, cutting or removal of tubing required, the valves never come in contact with the fluid so they will not erode over time. With no fluid contact, the valve can be used, reused and disposed without fear of contamination. The valve meters from zero to full flow, allowing for optimal usage and fine adjustment. The 1mm divided metered scale on the valve body enables calibration to be recorded and replicated. The valves fit an outside soft wall tubing diameter (OD) from 4.0mm to 13.0mm.