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Hanna Phosphorus ULR HI736 Reagents (25 Tests)

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Hanna Phosphorus ULR HI736 Reagents (25 Tests)

(1 customer review)


Earn 55 points upon purchasing this product.

Get accurate results for your saltwater aquarium with our simple handheld colorimeter.

Our ultra low range phosphorus colorimeter brings you more precise technology from your typical chemical test kit. Standard test kits have limited accuracy since they rely on the user to match colors. Our handheld colorimeter makes your life easier by eliminating color matching and providing you a direct saltwater phosphorus result.

Stock up on reagents! This checker includes a starter kit for 6 tests.

  • Take our portable handheld colorimeter anywhere.
  • Simple, one-button design makes getting your results easy.
  • Improve your technology and upgrade from your standard test kit

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hanna instrument

Phosphorus Ultra Low Range Checker® HC Reagents (25 Tests) – HI736-25



The HI736-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Phosphorus Ultra Low Range Checker® HC. These reagents follow the Ascorbic Acid Method in which the reaction between phosphorus and reagents causes a blue tint in the sample. By simply adding the packet of HI736-25 reagent to the sample, the reaction will take place and the HI736 will determine the concentration from the color that is produced. The results will be displayed in ppb of phosphorus. These reagents are designed to be used with samples that have an expected range of 0 to 200 ppb phosphorus.




Package sachets
Quantity 25
Method adaptation of the Standard Methods for the Examination of Water and Wastewater, 20th edition, Ascorbic Acid method. The reaction between phosphorus and the reagent causes a blue tint in the sample.


Weight 0.1 kg
Dimensions 4.5 × 5 × 11 cm


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1 review for Hanna Phosphorus ULR HI736 Reagents (25 Tests)

  1. Jackson Tang Ka Shuin (verified owner)

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