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pH Buffer Calibration Solution 2-Pack: pH 4.00 and pH 7.00 — 1 Quart (950 mL) Each — NIST Traceable Reference Standards for All pH Meters — Color Coded
$65.80
- Color Coded for Easy Identification - Individually Bagged 1 Quart (32 oz) Poly Bottles - Lot Numbered and Expiration Dated - Free Certificate of Analysis and Traceability - For Pharmaceutical, Academic, Research and Industrial Uses