Hardness
HI-802 Iris Visible Spectrophotometer with Barcode Reader
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HI-735-25 Reagents for HI-735 Total Hardness Low Range Checker HC
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HI-735 Total Hardness Low Range Checker Handheld Colorimeter
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HI-83399 Water and wastewater multi-parameter with COD photometer & pH meter
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HI-97735-11 Total Hardness CAL Check standard kit for HI-977 series photometers
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HI-97719-11 CAL Check™ standards for Magnesium Hardness, 0.0 and 1.00 ppm
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HI-97720 Calcium hardness photometer: Range 0.00 to 2.70 mg/L (ppm)
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HI-97719 Magnesium hardness photometer: Range 0.00 to 2.00 mg/L
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HI-97736 Total hardness and pH portable photometer
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HI-97745 Free and Total Chlorine, Hardness, Iron Low Res, pH portable photometer
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HI-97735C Total Hardness Portable photometer Kit
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HI-97735 Total Hardness Portable Photometer
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HI-801-02 Iris Spectrophotometer
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HI-93735-0 Total Hardness Colorimetric Reagents, 100 tests
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HI-720-11 Calibration Check Set for the HI-720 Calcium Hardness Checker HC
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HI-719-11 Calibration Check Set for the HI-719 Magnesium Hardness Checker HC
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HI-720-25 Reagents for Calcium Hardness Colorimeter Checker HC
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HI-719-25 Reagents for the HI-719 Magnesium Hardness Checker HC
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HI-83300-02 Multi-parameter Benchtop Photometer & pH meter
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HI-720 Calcium Hardness Handheld Colorimeter - Checker HC
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HI-93735-00 Total Hardness Low Range Colorimetric Reagents, 100 tests
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HI-3842 Hardness, High Range Test Kit
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HI-3841 Hardness - Range (40-500 mg/L) Test Kit
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HI-3840 Hardness test kits
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HI-3823 Combination test kit for Aquaculture
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HI-3814 Environmental Monitoring test kit
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HI-3812 Hardness (Total) test kit
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HI-38033 Hardness (as CaCO3), total - Range (0-30 gpg)
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HI-96735-11 CalCheck standards for Hardness LR/MR/HR, 0.0 and 150/350/520 pp
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HI-93735-02 Total Hardness High Range Colorimetric Reagents (100 tests)
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HI-93735-01 Total Hardness Medium Range Colorimetric Reagents, 100 tests
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About Hanna Instruments
As a world-leading developer in pH and titration science, we help professionals and amateurs with their daily testing needs across a wide range of applications. We provide easy-to-use, well-adapted instruments at great prices and fast support.
Our philosophy of being as close to our customers as possible has resulted in dedicated sales and technical support offices in over 40 countries. Our desire to be an innovator has created many world firsts in test instrumentation, and we continue to innovate and bring new solutions to the market as a direct response to our customers' needs. You will find Hanna instruments used in almost every conceivable application. From happy amateurs looking after their home aquarium, to food artisans and all the way to national and international brands in all industrial sectors, Hanna is a trusted name with over 3,000 products, all manufactured in our ISO9001 certified European manufacturing facility.