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Hanna Checker Nitrate HR (HI 782) PO4 Professional instrumentation incorporates a light coraux Professional instrumentation incorporates a light source such as an LED or tungsten lamp with a filter and a light sensing detector to precisely determine ion concentration The Alien Blood Favia is distinguished by its intense blood red color visually determining colors is no longer a challenge The HI782 premium marine nitrate colorimeter is specifically designed to quickly and accurately determine elevated nitrate levels for saltwater aquariums and marine applications
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