Ideal for salt water aquariums and coral reef tanks.

Specially designed for salt water, the HI-736 Phosphorus Checker will measure vital phosphorus levels - even at exceptionally low range.

Checker®HC is supplied with reagents for 6 tests. Use code HI-736-25 (25 tests) for future purchases.

HI-736 Phosphorus Marine Ultra-Low Range Colorimeter - Checker