The Insta-TEST Pool 4 Plus pool & spa strip measures
- Free Chlorine 0-10 ppm
- Bromine 0-20 ppm
- Total Alkalinity 0-240 ppm
- pH 6.2-9.0
- Total Hardness 0-800 ppm
- cyanuric acid 0-250 ppm
This test strip is a dip-n-read strip with instant results. Each bottle includes 50 test strips packaged in a waterproof PopTop bottle with a hinged cap.
The bottle has a molded desiccant liner, which protects the strips from moisture and UV light. The Insta-TEST Pool 4 Plus strip is ideal for spa owners who need the most critical tests for perfect water balance.
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