12PK Test Tubes 30ml - Bakelite Screw Cap with Rubber Liner - Borosilicate 3.3 Glass - 3.9" x 1" - Round Bottom - Leak Proof - Eisco Labs

Pack of 12 round bottom 30ml test tubes. Made of high quality Borosilicate 3.3 Glass. Each test tube includes a Bakelite screw cap with rubber liner. Autoclavable, with superior chemical durability. Low temperature gradient- can withstand high temperatures & thermal shocks. Each test tube measures 1" wide and 4" tall (including cap). The test tubes have an inner diameter of 16mm and an outer diameter of 21mm. Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use. Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. 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.