Test Tube,20mL: 12-Pk,Screw Cap w/Rubb

Pack of twelve, round bottom test tubes, each with a 20ml capacity. Tubes are made of high quality Borosilicate 3.3 Glass, and include a Bakelite screw cap with rubber liner for a leak proof seal. Tubes are useful for a variety of laboratory applications including transferring and storing chemicals and samples, and for handling and culturing biological material. Also suitable for use in the home or garage for crafting and storage.<br><br>The test tubes are autoclavable and features superior chemical durability. Low temperature gradient, allowing them to withstand high temperatures & thermal shocks.<br> Each test tube measures 0.6" wide and 5.9" tall (including cap).<br><br> Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use.<br><br> <b>Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control.</b><br> Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments.