
TDS/PPM meter testing / calibration solution. At standard of 2.77 EC (1385 PPM on 500 scale), use for testing your conductivity probe.
The Bluelab 2.77 EC Conductivity Standard Solution destined to impress, and priced at only $14.95, for a limited time.
Inventory Last Updated: Jul 18, 2025
Inventory Last Updated: Jul 18, 2025