Hybex™ Reusable Media Bottles - Starter Pack. Includes (2) 100ml, (3) 250ml, (3) 500ml and (2) 1L bottles. Manufactured from high quality, borosilicate 3.3 glass. With their superior chemical resistance, these bottles are ideal for storage of reagents, culture media, biological fluids and a variety of other aqueous and nonaqueous solutions. A low coefficient of thermal expansion (3.3), provides temperature resistance that is far superior to that of standard lab glass (or soda lime glass). Hybex glass can withstand temperatures from -70 to 500°C, permitting repeated use in freezers, microwaves, autoclaves and dry heat sterilization chambers. All hybex media bottles include a drip-free sealing ring as well as a standard blue polypropylene (GL45) sealing cap. Bottles are also available with green, purple, white and yellow caps, or in an assortment pack containing two of each color. Material: Hybex™ borosilicate glass (3.3), Cap thread size: GL45* (except 50ml = GL32), Temperature range: -70° to 500°C, Sterilization: Autoclave or dry heat, Cap material: Polypropylene (140°C), Cap colors: Standard blue, green, purple, yellow, white, assorted.