Collection: Calibration & Reference Solutions
Shop our selection of calibration and reference solutions to help keep your PH and EC/PPM/TDS meters calibrated and reading accurately.
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Sale
Mad Farmer Get Up
Regular price From $10.00 USDRegular priceUnit price / per$11.55 USDSale price From $10.00 USDSale -
Nectar for the Gods Hades pH Down
Regular price From $17.00 USDRegular priceUnit price / per$22.99 USDSale price From $17.00 USDSale -
Nectar for the Gods Olympus Up
Regular price From $14.00 USDRegular priceUnit price / per$16.49 USDSale price From $14.00 USDSale -
Cutting Edge Solutions pH Up
Regular price $12.00 USDRegular priceUnit price / per$13.33 USDSale price $12.00 USDSale -
Emerald Harvest® pH Up
Regular price From $18.00 USDRegular priceUnit price / per$26.68 USDSale price From $18.00 USDSale -
General Hydroponics® pH Test Kit
Regular price From $7.90 USDRegular priceUnit price / per$9.59 USDSale price From $7.90 USDSale