GVS 10498503 Dilution Bottle, Butterfield's Buffer, 99ml, 72/pk

Prefilled sterile dilution bottles are designed for sample dilution of water, dairy products, foods, and pharmaceuticals prior to microbiological testing.
Final pH for all solutions is 7.2 pH ±0.2 pH at 25°C.
They come in an easy open, flip-top, plastic container with a tamper-evident seal.