Online Exclusive Specials
Hanna Water Test Kits
Browse Hanna aquarium specials on test kits, checkers and water testing gear for freshwater and marine tanks. Find online-only deals on trusted Hanna products that help support accurate readings, stable water and easier aquarium care at home.
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Hanna Alkalinity, colorimetric method, Reagents for 25 tests - HI772-26
$29.99
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Hanna Marine phosphate - ultra low range, ascorbic acid, reagents for 25 tests - HI774-25
$29.99
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Hanna Marine Reagents for High Range Nitrate 25 Tests - HI782-25
$39.99
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Hanna Marine phosphate - low range, ascorbic acid, reagents for 25 tests - HI713-25
$24.99
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Hanna Salinity Tester - HI98319
$169.99
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Hanna Marine Calcium Checker HC Colorimeter - HI758
$119.99
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Hanna Marine Calcium Checker HC Reagents for 25 Tests - HI758-26
$59.99
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Hanna Marine Alkalinity (CaCO3) Checker® HC (Parts Per Million) - HI755
$103.99
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Hanna Marine Nitrate High Range Checker - HI782
$114.99
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Hanna 35.00 ppt Marine Salinity Calibration Standard (25 x 20 ml) - HI70024P
$69.99
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Hanna Checker® Plus pH Tester with 0.01 pH resolution - HI98100
$99.99
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Hanna Marine Magnesium Checker - HI783
$142.99
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Hanna Marine Magnesium Reagents for 25 Tests - HI783-25
$44.99
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Hanna Phosphate Ultra Low-Range Checker® HC - HI774
$119.99
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Hanna Phosphate Low-Range Checker® HC - HI713
$119.99
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Hanna Marine Alkalinity Checker®HC (dKH)- HI772
$108.99
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Hanna Marine PH Checker - HI780
$103.99
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Hanna Marine PH Checker Refills (100) Tests) - HI780-25
$39.99
