Characteristics: Sturdy and durable, heat and corrosion resistance, acid and alkali resistance, thermal shock resistant, reusable. Erlenmeyer Flask, 500mL - Borosilicate Glass - Narrow Neck Flasks, Conical Flasks, Glass Flasks Conical Flasks Glass Flasks Eisco Labs 3000ml Conical Flask Lab Glass Erlenmeyer Flask 3000ml Wide Mouth Conical Flask Borosilicate Glass Flask Specifications for this item, Part Number 1122, Number of Items 3, Brand Name CURIOUS, Material Boro 3.3 Glass, Model Number... D of flask neck), 131mm (O., D of flask bottom) Erlenmeyer Conical Flask with Glass Stopper and Graduation,Borosilicate 3.3 Glass,Lab Glassware,Set of 50ml 150ml 250ml. $20.00. Specifications for this item Okulab Conical Flask Set, Glass Erlenmeyer Flasks, 3000ml Lab Erlenmeyer Flasks, Capacity: Vol., 3000ml 1pc per set , Size: 42mm(O.