Agilent Technologies Inc. has unveiled the Agilent Large Valve Oven for the 7890B gas chromatograph, or GC, system. This versatile, high-capacity external oven can be configured to support complex, multi-valve AS International and EN (European Standard) GC applications. Precisely engineered for thermal isolation from the GC oven, the oven provides a homogeneous isothermal environment for up to six positions for columns and valves.