ThisInsta-TEST Low Range Phosphate Test Strips measure the phosphate levels from 0, 100, 200, 300, 500, 1000, 2500 ppb in just 15 seconds.
- Bottle includes 25 test strips
- Packaged in a waterproof PopTop bottle
- Molded desiccant liner protects the strips from moisture and UV light
- Includes trilingual instructions (English, Spanish, French)
- Part 3021-G-6
