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pH 4 Buffer (500 ML) Bottle HI7004L - Hanna Instruments
Hanna Instruments$18.00This buffer value is widely used in water purification plants, in the food industry, and wherever the pH is expected to be slightly acidic. Traceable to NIST standards Available in bottles or... -
On Sale 12%
(OPEN BOX) HI981520 Hanna Marine Monitor pH, Marine Salinity, Temperature - Hanna Instruments
Hanna Instruments$249.00$219.00Monitoring the salinity, pH and temperature of the water is an important routine in the maintenance of a marine aquarium or marine aquaculture. The Hann HI981520 is an easy-to-use monitor that... -
On Sale 25%
(OVERSTOCK) (Expires 11/2025) (HI781-25) Marine Low Range Nitrate Checker Reagents (25 Tests) - Hanna Instruments
Hanna Instruments$16.00$11.99The HI781-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their HI781 Marine Nitrate Low Range Colorimeter. These reagents follow... -
On Sale 37%
(DAMAGED BOX) HI775 Marine Alkalinity Checker HC (Freshwater) - Hanna Instruments
Hanna Instruments$63.95$39.99The Hanna Freshwater Alkalinity Checker bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely... -
On Sale 31%
(DISCONTINUED - EXP 4/23) pH 10.01 Calibration Buffer 20 ml (Pack of 25) - Hanna Instruments
Hanna Instruments$29.00$19.99EXP 4/23 HI70010P is a premium quality pH 10.01 calibration buffer solution. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each... -
On Sale 33%
(DISCONTINUED - EXP 7/23) HI7010L 10.01 pH Calibration Buffer Solution (500 ml) Bottle - Hanna Instruments
Hanna Instruments$15.00$9.99EXP 7/23 HI7010/1L is a premium quality pH 10.01 calibration solution that has been dyed violet for easy buffer identification. Hanna calibration buffers have the lot number and expiration date... -
On Sale 50%
EXPIRE 8/23 (HI781-11) Marine Nitrate LR Certified Check Set - Hanna Instruments
Hanna Instruments$18.00$9.00The Marine Nitrate Low Range Checker Calibration Check Set - HI781-11 provides a simple solution to validating the Marine Nitrate Checker® HC® - HI781. This high-quality set of... -
HI70442P 1500 mg/L (ppm) TDS Calibration Solution 20 mL (Single Pack) - Hanna Instruments
Hanna Instruments$1.30SINGLE 20 mL pack HI70442P is a premium quality 1,500 mg/L (ppm) TDS calibration solution that is NIST traceable and contained in portable single-use sachets. Each sachet has the lot number and... -
HI70442P 1500 mg/L (ppm) TDS Calibration Solution 20 mL (25 Pack) - Hanna Instruments
Hanna Instruments$32.00HI70442P is a premium quality 1,500 mg/L (ppm) TDS calibration solution that is NIST traceable and contained in portable single-use sachets. Each sachet has the lot number and expiration date stamped... -
HI50021P Calibration Check Solution 20 mL (Single Pack) - Hanna Instruments
Hanna Instruments$1.56ONE Single 20 mL pack HI50021P is a premium quality calibration check solution used exclusively for the HI9813-6 portable pH/EC/TDS/Temp. meter. Each sachet has the lot number and expiration date... -
HI50021P Calibration Check Solution for HI9813-6 20 mL (25 Pack) - Hanna Instruments
Hanna Instruments$39.00HI50021P is a premium quality calibration check solution used exclusively for the HI9813-6 portable pH/EC/TDS/Temp. meter. Each sachet has the lot number and expiration date stamped on it and is made... -
HI70061G GroLine General Purpose Cleaning Solution, 20 mL (Single Pack) - Hanna Instruments
Hanna Instruments$1.75One Single Sachet - 20 mL HI70061G is a high quality cleaning solution designed with hydroponics, aquaponics, and greenhouses in mind. Single-use sachets are highly portable, with a small footprint... -
HI70061G GroLine General Purpose Cleaning Solution, 20 mL (25 Pack) - Hanna Instruments
Hanna Instruments$43.00HI70061G is a high quality cleaning solution designed with hydroponics, aquaponics, and greenhouses in mind. Single-use sachets are highly portable, with a small footprint and a lightweight design... -
Hanna Master Reef Beginner Kit (772 Alk, 758 Calcium, 783 Magnesium, 782 HR Nitrate, 774 ULR Phosphate) Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$319.75772 CheckerThe HI772 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH... -
Hanna Master Reef PRO Kit (772 Alk, 758 Calcium, 783 Magnesium, 781 LR Nitrate, 782 HR Nitrate, 713 Phosphate, 774 ULR Phosphate) Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$447.65772 CheckerThe HI772 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH... -
Hanna Core Parameters Kit (772 Alk, 758 Calcium, 783 Magnesium) Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$194.85772 CheckerThe HI772 Checker®HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure alkalinity in degrees of calcium hardness, commonly abbreviated as dKH... -
Hanna Algae Control PRO Kit (774 ULR Phosphate, 713 Phosphate, 781 LR Nitrate, 782 HR Nitrate) Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$255.80774 CheckerThe HI774 Ultra Low Range Phosphate Checker HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphate in marine systems including reef tanks... -
Hanna Algae Control Beginner Kit (774 ULR Phosphate, 782 HR Nitrate) Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$127.90774 CheckerThe HI774 Ultra Low Range Phosphate Checker HC (Handheld Colorimeter) provides a simple, accurate and cost-effective way to measure phosphate in marine systems including reef tanks... -
HI981520 Hanna Marine Monitor pH, Marine Salinity, Temperature - Hanna Instruments
Hanna Instruments$249.00Monitoring the salinity, pH and temperature of the water is an important routine in the maintenance of a marine aquarium or marine aquaculture. The Hann HI981520 is an easy-to-use monitor that... -
(HI784) Marine Ammonia Checker Handheld Colorimeter (Saltwater) - Hanna Instruments
Hanna Instruments$63.95The HI784 Marine Ammonia Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of ammonia colorimetrically. The HI784 is designed specifically to...