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PuraBac USA's complete range of pharmaceutical-grade Bacteriostatic Water for Injection, USP, is available in 3ml, 5ml, 10ml, and 30ml multi-dose vials, plus 3-pack, 5-pack, and 10-pack configurations for regular or high-volume laboratory research supply. All products contain 0.9% benzyl alcohol (9 mg/mL) as a bacteriostatic preservative in a sterile, non-pyrogenic water base. USP-grade. Ships from the USA; same-day dispatch Monday to Friday.