UniStore polyethylene terephthalate glycol (PETG) bottles are designed for long-term storage of media, biological buffers, and various reagents. Bottles are leakproof, durable, as well as freezer-safe, making them ideal for storage and transport. Includes a high-density polyethylene (HDPE) closure with heat-shrink band for a tamper evident seal. Bottles feature raised graduations for easy readability. Bottles are suitable for frozen storage to -40° Celsius. Bottles are Gamma sterilized and packaged in shrink wrapped trays within an outer bag.