600mm inside diameter x 14.200mm overall height glass packed column. Manufactured by Schott Schleiffer Chemie-Technik in Switzerland Number of main parts: 13 Number of glass middle sections: 11 Glass cover top height: 400mm Glass cover top inside diameter: 600mm Glass cover top openings: (1) NW 200, (2) NW 25 Glass cover bottom height: 300mm Glass cover bottom inside diameter: 600mm Glass cover bottom openings: (1) NW 100 First middle section height: 600mm First middle section inside diameter: 600mm First middle section opening: (1) NW 80 Second middle section height: 1.500mm Second middle section inside diameter: 600mm Second middle section openings: (2) NW 50, (2) NW 25 Third middle section height: 1.500mm Third middle section inside diameter: 600mm Third middle section openings: (3) NW 50 Fourth middle section height: 1.500mm Fourth middle section inside diameter: 600mm Fourth middle section openings: (2) NW 25, (1) Fifth middle section height: 1.500mm Fifth middle section inside diameter: 600mm Fifth middle section openings: (2) NW 25 Sixth middle section height: 600mm Sixth middle section inside diameter: 600mm Sixth middle section openings: (1) NW 80 Seventh middle section height: 1.500mm Seventh middle section inside diameter: 600mm Seventh middle section openings: (2) NW 50, (2) NW 25 Eighth middle section height: 600mm Eighth middle section inside diameter: 600mm Eighth middle section openings: (1) NW 150 Ninth middle section height: 1.500mm Ninth middle section inside diameter: 600mm Ninth middle section openings: (2) NW 50, (2) NW 25 Tenth middle section height: 1.500mm Tenth middle section inside diameter: 600mm Tenth middle section openings: (2) NW 25 Eleventh middle section height: 1.200mm Eleventh middle section inside diameter: 600mm Eleventh middle section openings: (1) NW 150, (2) NW 100, (1) NW 50, (2) NW 25 Included items: support pipe construction, flanges, connection pieces, ceramics pall ring packing material, and many glass accessories.