Description
xAll-in-one colorimetric reagents for marine alkalinity checks
The HI772-26 reagent set works with the Hanna Marine Alkalinity Checker HC to help you assess dKH quickly and with repeatable color results. The reagents are pre-measured to simplify your testing workflow, reducing prep steps while supporting accurate readings across multiple samples.
The colorimetric method used here yields a distinct color progression, moving from yellow to green to blue as alkalinity levels rise. When you compare the sample color to the checker’s scale, the device reports a dKH value, typically within the 0.0 to 20.0 dKH range. This setup aims to provide clear, interpretable results without guesswork, ideal for hobbyists and professionals who monitor reef tanks, aquariums, or small marine systems.
What you get and how it helps your workflow
- Pre-measured reagents designed for quick testing
- High-purity chemicals to support reliable readings
- Labels include expiration date and lot number for traceability
- Includes 25 tests per kit to support routine monitoring
To get the most out of the HI772-26 set, follow the included instructions for sample collection and reagent addition. Keeping the testing environment clean and free from contaminants helps maintain color clarity and reading accuracy over time.
Quick start guide
- Collect a clean water sample from your system
- Add the HI772-26 reagent to the sample as directed
- Observe the color development and compare it to the Marine Alkalinity Checker HC scale
- Read the dKH value on the checker and log results for trend tracking
Real-world applications
These reagents are well-suited for reef tanks, marine aquariums, and hobbyist testing routines where stable alkalinity supports coral health and predictable maintenance. The pre-measured format helps reduce waste and keeps the testing process tidy, especially during busy periods.
Storage and traceability
- Expiration date is clearly printed on each bottle
- Lot number printed for easy traceability
- Store per package directions to preserve reagent integrity
FAQ
Q: What is HI772-26 used for?
A: These pre-measured reagents work with the Hanna Marine Alkalinity Checker HC to determine dKH by color change, within the 0.0–20.0 dKH range.
Q: How should I store and track these reagents?
A: Each bottle is labeled with expiration date and lot number for traceability; store per package instructions and use before expiry for best results.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
- Choosing a selection results in a full page refresh.
