TIS Capillary Electrode, API 2000, QTRAP Back Catalog number: CTS-21212 Availability: In the manufacturer's stock Price on request - + Recommended CD97 TDS tester with ATC, range: 1 - 999 ppm Price on request MI5559 pH55 (pH/Temp waterproof tester Mi5559 Price on request MI150-E pH/Temp combined bench meter Mi150-E Price on request