Buffered Peptone Water 2X (BPW 2X), Sterile, Pre Enrichment Media, 25mL, 50/Case. This high-quality pre-enrichment media is perfect for microbiological testing, offering a sterile and reliable solution. The BPW 2X formula is designed to support microbial growth by enriching the sample, making it ideal for food and water testing in laboratory environments. It comes ready to use, ensuring quick and accurate sample preparation.