Conical Flask (Erlenmeyer) – Borosilicate, Narrow Neck, 200ml. High quality Conical Flasks at an affordable price, made in Europe from borosilicate for extreme durability in your laboratory. Designed to withstand high temperatures and the harshest chemicals. Leading European manufacturer, with over 175 years experience making borosilicate glass. Borosilicate for the harshest lab environments. Perfectly flat bottom so they won’t spill. Guaranteed Premium Quality, Used in Chemistry, Pharmacy, Health, Biology and Food applications. Permanent Markings, Dishwasher and Heat Safe