Stay on top of water quality with this go-to testing combo trusted in our own systems. The Hanna Instruments Marine Nutrient Checker Kit combines two of the most reliable handheld colorimeters available from Hanna Instruments—designed specifically for reef aquariums and built to give consistent, lab-grade results.
Whether you’re tracking down nuisance algae or fine-tuning coral growth, this bundle includes everything you need to monitor phosphate and nitrate levels with confidence.
What’s Included
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HI774 Ultra Low Range Phosphate Checker
Measures phosphate down to 0.01 ppm—ideal for reef tanks where small nutrient shifts can mean big changes. Quick, easy, and accurate without relying on hard-to-read color charts.
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HI782 High Range Nitrate Checker
Perfect for keeping tabs on nutrient spikes. Easy-to-use handheld tester for nitrate levels up to 75 ppm with digital readout—no guessing.
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Reagents
Includes an additional 25 phosphate tests and 25 nitrate tests to get you started.
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Accessories
Cuvettes, caps, batteries, and instructions—everything you need to get testing right away.
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