Keep your pH meter accurate by frequently calibrating it. Use a pH 4.0 and pH 7.0 calibration solutions.
- Store solution in a cool dark place, away form direct sunlight or grow lights
- Use the solution within 3 months of opening
$9.09

Keep your pH meter accurate by frequently calibrating it. Use a pH 4.0 and pH 7.0 calibration solutions.
Seed Packs & Bulk Seeds
Seed Packs & Bulk Seeds
Seed Packs & Bulk Seeds
Seed Packs & Bulk Seeds
Seed Packs & Bulk Seeds
Seed Packs & Bulk Seeds
Seed Packs & Bulk Seeds
Seed Packs & Bulk Seeds
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