Non MAP Products

Easier to use and more accurate than chemical test kits Adaptation of Standard Method Ascorbic Acid Accuracy ±5% of reading ±5% ppb 1 ppb resoluti...

Hanna Instrument Iron Photometer

Reagent kit for 25 Iron Tests Range: 0.00 to 5.00 mg/L  

Magnesium is the third most abundant ion in seawater, surpassed only by sodium and chloride. Its abundance is critical in the formation of weak ion...

Reagent refill for the HI-783 (UPDATE VERSION with powder and liquid reagent.) Magnesium is the third most abundant ion in seawater, surpassed only...

The HI774 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphate in marine systems including co...

NEW BATCH ARRIVED! ALL REAGENTS SOLD AFTER May 25 2026 ARE FINE.  Voluntary Recall Notice We are issuing a voluntary recall for the Hanna HI 774-25...

REAGENTS: HI 764 Reagent kit for 25 Nitrite tests Range: 0 to 200 ppb

Hanna Instrument Phosphorus Ultra Low Range Reagents - HI736 (25 units)

Hanna Instruments Checker Marine Alkalinity Colorimeter Hanna HI755 Marine Alkalinity Checker Specifications: Range: 0 to 250ppm (mg/L) Resolution...

Refill Kit for Hanna Instruments Checker Marine Alkalinity Colorimeter

Refill Kit for Hanna Instruments Calcium Checker

Hanna Instruments Copper REFILL KIT - HI702-25 - pack of 25

The HI731315 are spare glass cuvettes and plastic caps used with the HI7XX Hanna Checkers. The HI731315 includes 2 cuvettes and 2 caps.

Hanna Instruments Low Range Marine NITRATE Checker HC - HI781   The Hanna Marine Low Range Nitrate Checker® bridges the gap b...

Hanna Instruments Checker Marine Calcium Colorimeter Easier to use and more accurate than chemical test kits Colorimetric method Accuracy ±6% of r...

Hanna Marine Coral Care Checker Bundle – Calcium, Alkalinity & Magnesium Take the guesswork out of reef chemistry with this all-in-one digital ...

The HI97115 Marine Multiparameter Photometer is a compact powerhouse for aquariums and marine biology, capable of precisely measuring pH, Alkalinit...

Hanna Instruments Low Range Marine NITRATE Checker HC REFILL HI-781-25   1x PC x100 mL HI781A-0 25x PCS x 0.16g HI781B-0 ...

Hanna Instruments Checker Phosphate Colorimeter Easier to use and more accurate than chemical test kits Adaptation of Standard Method 4500-P E Accu...

Refill Kit for Hanna Instruments PO4 Checker - pack of 25

Testing and monitoring salinity in saltwater aquariums is an ongoing task. The HI981520 is an easy-to-use vertical mount unit that continuously mon...

he HI782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwate...

HI782-25 Marine Nitrate High Range Reagents are for use with the HI782 Marine Nitrate High Range Checker HC. They are manufactured in our state...