Main -> Glass construction, glass equipment -> Glass components, grounded joint components -> Columns Column Packings, Rettberg 1 Glass beads, solid, AR-GLAS® Ø mm Order No. Ø mm Order No. 2 13 40 69102 5 13 40 69105 3 13 40 69103 6 13 40 69106 4 13 40 69104 2 Raschig rings, AR-GLAS® (glass rings) Length mm Ø mm Order No. Length mm Ø mm Order No. 3 3 13 40 69203 5 5 13 40 69205 4 4 13 40 69204 6 6 13 40 69206