Prices start at : 13.99 USD
Simply mix soil with water, then pour the water off, dissolve a test capsule, and compare the color to the included chart. Balancing your soil is necessary for healthy plant growth.
- ✓ Includes a chart of pH and NPK levels for more than 100 plants
- ✓ Simple, fast and accurate results - with no experience required to perform the tests
- ✓ 40 tests, 10 each for pH, nitrogen, phosphorus and potassium
- ✓ Patented color comparator system
- ✓ Shipping Dimensions: Approximately 9 x 8.5 x 1.5 inches.