Colombo – Phosphate Test (PO4)

Colombo – Phosphate Test (PO4) is a drop test for measuring phosphates in ponds and aquariums.

• High precision
• Up to ~50 measurements
• Procedure: Add drops, shake and compare
• Range: 0 – 2.0 mg/L

Reagents, test tube and color scale included.

Contents for 40 tests.