Karter Scientific Glass Flask 5 Piece Set, Narrow Mouth Erlenmeyer, Borosilicate 3.3 Glass - 50ml, 150ml, 250ml, 500ml, 1L, 213B2 Description Features: Contains 1 each 50, 150, 250, 500 & 1000ml Flask High quality inert 3.3 borosilicate glass Height of each as follows:, 50ml = approx. 85mm, 150ml = approx. 120mm, 250ml = approx. 140mm ,500ml = approx. 175mm , 1000ml = approx. 220mm ASTM Specification E960, Type I requirements 121C/250F conducted in a slow and careful manner to avoid breakage. Heavy Duty Reusable. Product Details: Material: Borosilicate Glass Capacity: 1000 Milliliters Brand: Karter Scientific Bottom Shape: Round Specification Met: Astm , Astm E960 Is Discontinued By Manufacturer ‏ : ‎ No Package Dimensions ‏ : ‎ 13.88 x 9.8 x 6.6 inches; 2.55 Pounds Item model number ‏ : ‎ 213B2 Date First Available ‏ : ‎ January 6, 2012 Manufacturer ‏ : ‎ Karter Scientific Best Sellers Rank: #15,384 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #3 in Lab Erlenmeyer Flasks #3 in Lab Erlenmeyer Flasks Customer Reviews: 4.7 4.7 out of 5 stars 1,775 ratings