Wheaton PET Square Media Bottles are manufactured from polyethylene terephthalate which provides the clarity of glass, the strength of plastic, and a space-saving design. These sterile bottles are tested superior for pH stability, temperature durability, cloning efficiency and cytotoxicity. Graduations: size 125 mL is graduated in 25 mL increments; size 500 mL is graduated in 50 mL increments. The bottles come with caps pre-attached and are shrink-wrapped in convenient trays.

• Permanent in-mold graduations
• No-drip pour lip
• Lightweight
• 20% headspace for additives