Waters, 700005478, ASSY, WELDED TUBE, STAINLESS STEEL, 19.0 LG, LOW PRESSURE

The Waters ACQUITY low-pressure welded stainless-steel tubing assembly carries the column effluent toward the CM-A switching valve in supported UPLC column-manager plumbing. The product is the 19.0-length, low-pressure version, distinct from the high-pressure line of the same nominal length. Maintaining the designated flow-path geometry is important because added tubing volume, poor end-fitting alignment or a blocked line can alter pressure and chromatographic peak shape. Use this assembly when servicing the specified column-outlet connection rather than adapting an unrelated length or pressure class. Before removing a line, stop solvent flow, depressurize the system and note the existing valve-port positions. Install the replacement without kinks, overtightened fittings or unnecessary mechanical stress on the column and valve. Prime the path using a compatible mobile phase, check for leaks and verify that the switching valve directs flow to the expected destination. Confirm the precise ACQUITY column-manager variant before ordering the line.