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
| Country | USA |
| Brand | XONOR |
| Manufacturer | XONOR |
| ItemPartNumber | SZHPH |
| Model | Angle-2P |
| Color | Gray |
| UnitCount | 2 |
| ReleaseDate | 0000-00-00 |