1121 Erlenmeyer flasks, narrow neck, with graduation, Boro 3.3 Glass Description: This flask is made of borosilicate 3.3 glass for durability and chemical-and temperature-resistance, and its uniform wall thickness provides mechanical strength for shock-resistance. Borosilicate glass has a low coefficient of thermal expansion and is resistant to thermal stress. Boiling flasks provide uniform heating of liquids for quality testing, sampling, and research in chemistry, education, research, and life science applications. There are 14 sizes available. 5ml Erlenmeyer flasks, 10ml conical flask, 25ml Erlenmeyer flasks, 50ml Erlenmeyer flasks,100ml conical flask, 150ml Erlenmeyer flasks, 250ml Erlenmeyer flasks, 300ml Erlenmeyer flasks, 500ml Erlenmeyer flasks, 1000ml Erlenmeyer flasks, 2000ml Erlenmeyer flasks, 3000ml conical flask, 5000ml, 10000ml conical flask. Material: Boro 3.3 Glass Color: Clear Glass Selling points: High transparency heat resistance high quality 1120 Erlenmeyer flasks Wide Neck with Graduation DIN 12385 5009 Conical Flask, Standard ground mouth Description: This flask is conical and with standard ground mouth. There are 30 sizes available: 5/10 standard ground mouth conical flask, 5/14 standard ground mouth conical flask, 10/10 standard ground mouth conical flask, 10/14 standard ground mouth conical flask, 10/19 standard ground mouth conical flask, 25/10 standard ground mouth conical flask, 25/14 standard ground mouth conical flask, 25/19 standard ground mouth conical flask, 50/14 standard ground mouth conical flask, 50/19 standard ground mouth conical flask, 50/24 standard ground mouth conical flask, 100/14 standard ground mouth conical flask, 100/19 standard ground mouth conical flask, 100/24 standard ground mouth conical flask, 100/29 standard ground mouth conical flask, 150/19 standard ground mouth conical flask, 150/24 standard ground mouth conical flask, 250/19 standard ground mouth conical flask, 250/24 standard ground mouth conical flask, 250/29 standard ground mouth conical flask, 250/34 standard ground mouth conical flask, 500/19 standard ground mouth conical flask, 500/24 standard ground mouth conical flask, 500/29 standard ground mouth conical flask, 500/34 standard ground mouth conical flask, 1000/24 standard ground mouth conical flask, 1000/29 standard ground mouth conical flask, 1000/34 standard ground mouth conical flask, 2000/29 standard ground mouth conical flask, 2000/34 standard ground mouth conical flask. Material: Boro 3.3 Glass Color: Clear Key Product Features: 1.High quality 2.Preferential price 3.Excellent service