Inoculo Soil pH Indicator Dye – 250 mL (Refill Bottle)

The Inoculo Soil pH Indicator Dye (250 mL) is the same laboratory-grade dye used in all Inoculo Soil pH Test Kits. Designed for gardeners, growers, and educators who test regularly, this refill bottle provides long-lasting value and consistent, reliable results.

Formulated using the same CSIRO-validated colour response, our indicator dye delivers fast, clear pH readings across the full soil acidity–alkalinity range.

Perfect for:

• Home gardeners who test multiple garden beds

• Universities, Schools and workshops

• Horticulture and small farms

• Replenishing existing Inoculo kits

Key Features

• Lab-grade accuracy with clear, repeatable colour response

• Large 250 mL refill — ideal for frequent testing

• Compatible with all Inoculo Soil pH Kits

• Ready-to-use formulation (no mixing required)

What’s Included

• 1 × 250 mL bottle of Inoculo soil pH indicator dye

Usage Notes

• Shake gently before use

• Store capped, out of direct sunlight

• Suitable for hundreds of individual soil tests