Maine Dilution Bottles Pack 10498505 by Maine Manufacturing GROUP: Lab Equipment & Accessories:Microbiology Products:Media Item Description: Dilution Bottle, Phosphate Buffer, Magnesium Chloride, 99mL, 72/pk Packaging Desc: Bottle Dilution Phosphate Mgbuffer 99Ml 72/Pack Country of Origin: US Harmonized Tariff Code: 3821.00.00 Product Description: Prefilled and sterile, these bottles are designed for sample dilution of water, dairy products, foods and pharmaceuticals prior to microbiological testing. Final pH for all solutions if 7.2 pH� 0.2 pH at 25�C. They come in an easy open, flip-top, plastic container with a tamper-evident seal.