Waters TA Instruments EGA Furnace for the TGA 55 and TGA 550 is a low-volume and vacuum-tight furnace designed for evolved gas testing with FT-IR, MS, and GC. Furnace windings are outside the quartz tube, and the reduced 20 mL volume prevents dilution of off-gas concentration. The furnace connects via a standard 1/8 inch Swagelok fitting.