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Marine Water Hanna Checkers

Hanna Instruments Saltwater Testing Colorimeters are easy to use and give easy to read, repeatable results. They have a wide range of colorimeters that can test your saltwater aquarium for alkalinity, calcium, phosphate, phosphorus, ammonia, and much more!

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38 Items

  1. HIREEF2 Professional Reef Test Kit
    2 Reviews
    Hanna Instruments
    HIREEF2 Professional Reef Test Kit
    $248.20

    Earn 248 Reward Points

    $292.00
  2. Alkalinity DKH Colorimeter HI772 Hanna Checker - Marine Water
    106 Reviews
    Hanna Instruments
    Alkalinity DKH Colorimeter HI772 Hanna Checker - Marine Water
    $54.36

    Earn 54 Reward Points

    $63.95
  3. Phosphate Ultra Low Range PPM Colorimeter HI774 Hanna Checker - Marine Water
    26 Reviews
    Hanna Instruments
    Phosphate Ultra Low Range PPM Colorimeter HI774 Hanna Checker - Marine Water
    $54.36

    Earn 54 Reward Points

    $63.95
  4. Calcium Colorimeter HI758 Hanna Checker - Marine Water
    159 Reviews
    Hanna Instruments
    Calcium Colorimeter HI758 Hanna Checker - Marine Water
    $54.36

    Earn 54 Reward Points

    $63.95
  5. HI98319 Marine Salinity Tester
    59 Reviews
    Hanna Instruments
    HI98319 Marine Salinity Tester
    $67.99

    Earn 67 Reward Points

    $79.99
  6. 25-Pack HI70024P 35ppt Salinity Calibration Sachet
    5 Reviews
    Hanna Instruments
    25-Pack HI70024P 35ppt Salinity Calibration Sachet
    $22.95

    Earn 22 Reward Points

    $27.00
    Add to Cart
  7. HI772-26 Alkalinity Checker Reagents - Hanna
    31 Reviews
    Hanna Instruments
    HI772-26 Alkalinity Checker Reagents - Hanna
    $11.05

    Earn 11 Reward Points

    $13.00
  8. HI774-25 Phosphate ULR Reagents - Marine Water
    2 Reviews
    Hanna Instruments
    HI774-25 Phosphate ULR Reagents - Marine Water
    $11.05

    Earn 55 Reward Points Earn 110 Reward Points

    $13.00
  9. Low Range pH/Conductivity/TDS Combo Pen HI98129 - Hanna
    2 Reviews
    Hanna Instruments
    Low Range pH/Conductivity/TDS Combo Pen HI98129 - Hanna
    $158.10

    Earn 158 Reward Points

    $186.00
  10. HI98108 Waterproof pHep+ Pocket Tester
    3 Reviews
    Hanna Instruments
    HI98108 Waterproof pHep+ Pocket Tester
    $54.40

    Earn 54 Reward Points

    $64.00
  11. Phosphorus Ultra Low Range Colorimeter HI736 Hanna Checker - Marine Water
    40 Reviews
    Hanna Instruments
    Phosphorus Ultra Low Range Colorimeter HI736 Hanna Checker - Marine Water
    $54.36

    Earn 54 Reward Points

    $63.95
  12. Alkalinity PPM Colorimeter HI755 Hanna Checker - Marine Water
    172 Reviews
    Hanna Instruments
    Alkalinity PPM Colorimeter HI755 Hanna Checker - Marine Water
    $54.36

    Earn 54 Reward Points

    $63.95
  13. Copper High Range Colorimeter HI702 Hanna Checker
    9 Reviews
    Hanna Instruments
    Copper High Range Colorimeter HI702 Hanna Checker
    $54.36

    Earn 54 Reward Points

    $63.95
  14. Nitrite Ultra Low Range Colorimeter HI764 Hanna Checker - Marine Water
    9 Reviews
    Hanna Instruments
    Nitrite Ultra Low Range Colorimeter HI764 Hanna Checker - Marine Water
    $54.36

    Earn 54 Reward Points

    $63.95
  15. Marine Monitor (pH/Salinity/Temperature)
    1 Review
    Hanna Instruments
    Marine Monitor (pH/Salinity/Temperature)
    $211.65

    Earn 211 Reward Points

    $249.00
  16. Nitrate High Range Colorimeter HI782 - Marine Water
    30 Reviews
    Hanna Instruments
    Nitrate High Range Colorimeter HI782 - Marine Water
    $54.36

    Earn 54 Reward Points

    $63.95
  17. Marine Ammonia Colorimeter HI784
    2 Reviews
    Hanna Instruments
    Marine Ammonia Colorimeter HI784
    $54.36

    Earn 54 Reward Points

    $63.95
  18. Marine Magnesium Colorimeter HI783
    11 Reviews
    Hanna Instruments
    Marine Magnesium Colorimeter HI783
    $54.36

    Earn 54 Reward Points

    $63.95
  19. Phosphate Low Range Colorimeter HI713 Hanna Checker - Fresh & Marine Water
    259 Reviews
    Hanna Instruments
    Phosphate Low Range Colorimeter HI713 Hanna Checker - Fresh & Marine Water
    $54.36

    Earn 54 Reward Points

    $63.95
  20. HI731339P Graduated Pipette
    2 Reviews
    Hanna Instruments
    HI731339P Graduated Pipette
    $21.25

    Earn 21 Reward Points

    $25.00
  21. HI702-25 Copper High Range Reagents (25 Pack)
    2 Reviews
    Hanna Instruments
    HI702-25 Copper High Range Reagents (25 Pack)
    $11.05

    Earn 11 Reward Points

    $13.00
  22. HI713-25 Phosphate Checker Reagents - Marine & Fresh Water
    62 Reviews
    Hanna Instruments
    HI713-25 Phosphate Checker Reagents - Marine & Fresh Water
    $11.05

    Earn 55 Reward Points Earn 110 Reward Points

    $13.00
  23. HI717-25 Phosphate HR Reagents
    Hanna Instruments
    HI717-25 Phosphate HR Reagents
    $9.35

    Earn 45 Reward Points Earn 90 Reward Points

    $11.00
  24. HI736-25 Phosphorus ULR Reagents - Marine Water
    13 Reviews
    Hanna Instruments
    HI736-25 Phosphorus ULR Reagents - Marine Water
    $11.05

    Earn 55 Reward Points Earn 110 Reward Points

    $13.00
  25. HI764-25 Nitrite ULR Reagents for HI764 Checker - Marine Water
    3 Reviews
    Hanna Instruments
    HI764-25 Nitrite ULR Reagents for HI764 Checker - Marine Water
    $11.05

    Earn 55 Reward Points Earn 110 Reward Points

    $13.00
  26. HI774-11 ULR Phosphate Standards for HI774 Hanna Checker
    1 Review
    Hanna Instruments
    HI774-11 ULR Phosphate Standards for HI774 Hanna Checker
    $12.75

    Earn 12 Reward Points

    $15.00
  27. HI713-11 Phosphate Calibration Check Set for HI713 Checker
    4 Reviews
    Hanna Instruments
    HI713-11 Phosphate Calibration Check Set for HI713 Checker
    $13.60

    Earn 13 Reward Points

    $16.00
  28. HI755-11 Marine Alkalinity Calibration Check Set for HI755 Checker
    7 Reviews
    Hanna Instruments
    HI755-11 Marine Alkalinity Calibration Check Set for HI755 Checker
    $12.75

    Earn 12 Reward Points

    $15.00
  29. HI758-11 Marine Calcium Calibration Check Set for HI758 Checker
    4 Reviews
    Hanna Instruments
    HI758-11 Marine Calcium Calibration Check Set for HI758 Checker
    $17.00

    Earn 17 Reward Points

    $20.00
  30. HI736-11 Phosphorus Calibration Check Set for HI736 Checker
    1 Review
    Hanna Instruments
    HI736-11 Phosphorus Calibration Check Set for HI736 Checker
    $12.75

    Earn 12 Reward Points

    $15.00
  31. HI764-11 Nitrite Calibration Check Set for HI764 Checker
    Hanna Instruments
    HI764-11 Nitrite Calibration Check Set for HI764 Checker
    $12.75

    Earn 12 Reward Points

    $15.00
  32. HI717-11 Phosphate HR Calibration Check Set
    1 Review
    Hanna Instruments
    HI717-11 Phosphate HR Calibration Check Set
    $13.60

    Earn 13 Reward Points

    $16.00
  33. HI702-11 Copper Standards for HI702 Hanna Checker
    Hanna Instruments
    HI702-11 Copper Standards for HI702 Hanna Checker
    $21.25

    Earn 21 Reward Points

    $25.00
  34. HI780-25 Marine pH Checker HC Reagents (100 Tests)
    Hanna Instruments
    HI780-25 Marine pH Checker HC Reagents (100 Tests)
    $13.60

    Earn 13 Reward Points

    $16.00
  35. Marine pH Colorimeter HI780 Hanna Checker
    11 Reviews
    Hanna Instruments
    Marine pH Colorimeter HI780 Hanna Checker
    $54.36

    Earn 54 Reward Points

    $63.95
  36. HI782-25 Nitrate HR Checker Reagents - Hanna
    3 Reviews
    Hanna Instruments
    HI782-25 Nitrate HR Checker Reagents - Hanna
    $13.60

    Earn 13 Reward Points

    $16.00
  37. HI781-11 Nitrate Calibration Check Set for HI781
    Hanna Instruments
    HI781-11 Nitrate Calibration Check Set for HI781
    $17.00

    Earn 17 Reward Points

    $20.00
  38. HI758-26 Calcium Checker Reagents - Marine Water
    20 Reviews
    Hanna Instruments
    HI758-26 Calcium Checker Reagents - Marine Water
    $22.95

    Earn 110 Reward Points Earn 220 Reward Points

    $27.00
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