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Hanna Instruments HI 755-26 Alkalinity Reagent Kit, For Alkalinity Checker HC (25 Tests)

4.3 out of 5 stars 39 customer reviews

Price: $17.99 & FREE Shipping on orders over $49. Details
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Specifications for this item
Brand Name Hanna Instruments
Color Blue
Compatible Devices HI755
EAN 0798804545901 , 0787461658574 , 0701748849547
Import Designation Imported
Number of Items 1
Part Number HI 755-26
UNSPSC Code 41115300
UPC 701748849547 , 798804545901 , 787461658574


Frequently Bought Together

  • Hanna Instruments HI 755-26 Alkalinity Reagent Kit, For Alkalinity Checker HC (25 Tests)
  • +
  • Hanna Instruments Checker HC Calcium Reagent
  • +
  • Hanna Instruments HI758 Marine Calcium Checker Test Kit - Saltwater Aquariums
Total price: $111.58
Buy the selected items together

Product Features

  • Reagent kit for performing 25 tests to determine alkalinity in seawater samples
  • For use with Hanna Instruments HI 755 Alkalinity Checker HC handheld colorimeter
  • Comes with one bottle of reagent, a syringe, and a dispensing tube

Product Description

The Hanna Instruments HI 755-26 Alkalinity Reagent Kit is for use with Hanna Instruments HI 755 Alkalinity Checker HC handheld colorimeter to perform 25 tests to determine alkalinity in seawater. The kit comes with one bottle of reagent, a syringe, and a dispensing tube.

Hanna Instruments manufactures analytical instrumentation and supplies, including pH meters, electrodes, chemical reagents, and buffer solutions. The company, founded in 1978 and headquartered in Woonsocket, RI, meets International Organization for Standardization (ISO) standard 9001.

What's in the Box?: HI 755-26 Alkalinity Reagent; Syringe; Dispensing tube


Product Details

Material Safety Data Sheet [PDF]
  • Product Dimensions: 50 x 50 x 50 inches
  • Shipping Weight: 0.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B005FH2QS2
  • Item model number: HI755-26
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (39 customer reviews)
  • Amazon Best Sellers Rank: #4,080 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
Had to return items, the reagents were defective. After immediately opening I noticed the color of the reagent was much lighter in color than any reagents I had previously used. Since the checker is a colorimeter this would have a obvious effect on the results. The readings were extremely low, like 3.68 dKH, I keep my tanks right around 9.5; I tested with 2 other test kits, Red Sea and Salifert. Both the other test kits had my dKH at 9.1 and 9.2 respectively.
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Verified Purchase
I really like all of the Hanna instruments that I have, and this is an economical solution to keep on testing my aquarium parameters. Double check the recall on the kit you receive, my latest batch was involved in the recall so I am awaiting a new batch directly from Hanna. So you may not want to wait until you completely run out of solution before you order, Hanna is set to deliver new batch in 2-4 weeks.
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Verified Purchase
The reagent works as expected. I bought a new batch to test two expired batches. They seem to last well beyond the expiration date and still give the same reading as a fresh batch.

They are now including the correct syringe and a tip that fits! Also, the bottles with blue caps are sealed underneath, so their shelf life is probably a bit better.

I store mine in the refrigerator because if I don't, these weird bacterial sheets form and you get debris in the sample. Cold storage seems to prevent that.
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Verified Purchase
This is much easier to use than API alkalinity testing kit. More expensive than the API kit (when you also purchase the Hanna Handheld Colorimeter), but easier and more accurate. And my time and lack of patience come into play when I have to test my saltwater tank alkalinity daily. For me, Hanna Instruments Alkalinity Checker is the only way to go.
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Verified Purchase
The last two containers of this solution tested correctly when first opened but then started giving much lower, 100 ppm, readings after three weeks. The expiration dates on each of the containers was 8/16. Very disappointed.
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Verified Purchase
I really love this reagent. Check one time weekly and lasts for long. Used also to check each alk prod to see how much a dose rEALLY increments because reading is so precise
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Verified Purchase
Very consistent reagents. Here's my tip - I buy 4+ at a time so I get a bunch of the same batch. This minimizes the possibility of a bad lot of reagents screwing up the tank
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Verified Purchase
Everything that's necessary to replace your reagents for the Hanna Alkalinity Checker. Reasonable price. Hanna Checkers definitely make testing your water easy and accurate.
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