Raschi Rings L, Ceramic 1 litre, 8x8 mm
8 x 8 mm. A bit larger rings but still ok, 6 x 6 mm is better but price decrease with larger size. The Raschig rings are made of ceramics and have a large surface area and are used as heat distributors in boiling or column-filling the reflux distilling apparatus. Size 8x8 mm.