This Nalgene square media bottle has a PETG body and an HDPE screw cap, and it is sterile. This media bottle is used to hold samples and for storage, mixing, and sampling applications. The PETG (polyethylene terephthalate glycol) body provides dimensional stability, is lightweight and impact resistant, and is transparent to allow visual monitoring of fluids. Its square shape is used for space-efficient storage, and for applications that require stability and gripping ease. This bottle has an HDPE (high-density polyethylene) cap to secure contents and help prevent spills and evaporation. The bottle and closure are sterilized to a sterility assurance level (SAL) of 10-6 by gamma irradiation for applications requiring sterility. Heavy wall construction helps secure bottle contents, and the bottle is graduated for measured dispensing and storing. The bottle is non-cytotoxic, non-pyrogenic, and it meets United States Pharmacopoeia (USP) Class VI criteria for medical grade plastic materials. This bottle can withstand temperatures to -40 degrees C, and it has low permeability to carbon dioxide and oxygen. This bottle is suitable for mixing and storing samples, tissue culture media, solutions, and pharmaceutical ingredients.

Lab bottles are used to store, hold, and mix liquids, powders, and other substances in a wide variety of scientific industries. Lab bottles have a more pronounced neck and shoulder than jars. Lab bottles are manufactured with a combination of characteristics in order to meet the demands of particular applications, such as for solution dispensing, mixing, and weighing, and use in centrifuge operations. They come in many shapes for specific applications, with a variety of mouth or nozzle shapes and sizes for specific use. Lab bottles are made from materials, such as glass (borosilicate or soda-lime) and an array of plastics, which are selected for chemical and thermal expansion resistance, transparency, and their adaptability in a variety of applications. Lab bottle interiors, caps, and lids are often lined with a protective material. Caps and lids help seal bottles to prevent solutions from spilling. The capacity refers to the fluid amount held by a lab bottle, and is commonly measured in milliliters (mL) and liters (l), and sometimes in ounces (oz). Lab bottles are suitable for use in chemistry and biology applications, as well as in pharmaceutical and scientific testing.

Nalge Nunc International manufactures plastic laboratory containers, outdoor sports bottles, and packaging materials under the Nalgene brand name. The company, founded in 1995, is headquartered in Rochester, NY.