APCI Capillary Electrode, API 4000, API 5000, 4500 Back Catalog number: CTS-21102 Availability: In the manufacturer's stock Price on request - + Recommended MA955 Solenoid valve with 1.5meter cable incl. Fittings Price on request HI 98308 Water Purity Tester, 0.0 to 99.9mS/cm Price on request ORP57 ORP/Temp waterproof tester ORP57 Price on request