Clear Reagent Bottles - 1000 ml, Pack of 6These 1000ml clear reagent bottles are designed for larger volume applications in educational laboratories. Made from tough Borosilicate 3. 3 glass, they can withstand high thermal and chemical stress, making them ideal for a wide range of experiments. Each bottle is equipped with a screw cap and a specially designed drip free pouring ring, which helps students pour liquids safely and accurately. Graduated markings and a writable label field support