12PK Test Tubes, 30ml – Bakelite Screw Cap with Rubber Liner – Borosilicate… por | Jul 22, 202612PK Test Tubes, 30ml – Bakelite Screw Cap with Rubber Liner – Borosilicate 3.3 Glass – 3.9″ x 1″ – Round Bottom – Leak Proof – Eisco Labs. Each test tube is made of high quality, heavy duty, Borosilicate 3.3...
