Tests calcium carbonate hardness phosphate and nitrate levels quickly and accurately; calibrated specifically for reef aquariums.

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ARP : $48.89   Price : $42.99  

Measures inorganic phosphate to less than 0.05 mg/l; multi-cavity plate for testing up to 6 tests at a time. Marine or freshwater.

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ARP : $25.49   Price : $22.99