CONSIST OF -13 TUBE 1.000 IN. OD; -15 TUBE 1.000 IN. OD; -17 FLANGE; -19 TUBE 1.000 IN. OD; BELLOWS ASSEMBLY-OPERATING PRESSURE 72 PSIG; OPERATING TEMP 435 DEG F; TUBING W/FLANGE AT EACH END AND BELLOWS ASSEMBLY LOCATED MIDWAY BETWEEN FLANGES; ONE FLANGE HAS FOUR MOUNTING HOLES