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On Sale 10%
On Sale 10%HI98103 Checker pH Tester with 0.1 pH Resolution - Hanna Instruments
Hanna Instruments$46.99$42.29The HI98103 Checker pH tester has been designed with many advanced features while maintaining the look and feel of the original Checker. The redesigned Checker now offers automatic calibration to one... -
On Sale 10%
On Sale 10%Checker Plus pH Tester (HI98100) Plus - Hanna Instruments
Hanna Instruments$64.99$58.49The HI98100 Checker Plus is the next generation of the original Hanna Checker pH tester. The Checker is the most popular pH meter in the world with over 1 million meters used since its introduction... -
On Sale 10%
On Sale 10%Low Range pH/Conductivity/TDS Tester (HI98129) - Hanna Instruments
Hanna Instruments$224.99$202.49Take the guesswork out of water testing with the Hanna Instruments HI98129, the industry-standard "Combo" tester. Engineered for professionals in hydroponics, aquaculture, water treatment, and... -
On Sale 10%
On Sale 10%Digital Refractometer for Seawater Analysis (HI96822) - Hanna Instruments
Hanna Instruments$249.99$224.99The HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. The HI96822 displays results in three popular measurement units:... -
On Sale 10%
On Sale 10%Marine Coral Care Kit w/Reagents (772 Alk, 758 Cal, 783 Mag) - Hanna Instruments
Hanna Instruments$194.99$175.49772 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... -
On Sale 10%
On Sale 10%HI73127 Spare Electrode For Testers - Hanna Instruments
Hanna Instruments$79.99$71.99Spare tester electrode. Compatible with: HI 98129, and HI 98130 Combo multi-parameter testers, HI 98127 and HI 98128 pHep testers, and HI 98121 ORP tester. -
On Sale 10%
On Sale 10%Glass Cuvette Cleaning Solution (230 ml) HI93703-50 - Hanna Instruments
Hanna Instruments$39.99$35.99The glass cuvette is an important component of the optical system in all colorimetric and turbidimetric measurements. Light reaches the sample by first passing through the cuvette glass. Based on... -
On Sale 10%
On Sale 10%HI780 Saltwater pH Checker - Hanna Instruments
Hanna Instruments$74.99$67.49Get accurate water testing results with the HI780 Marine pH Colorimeter. With a digital read out, there is no more struggling to determine colors visually. This pH tester's compact design fits in... -
On Sale 10%
On Sale 10%Graduated Pipette - 100 µL (HI731339P) - Hanna Instruments
Hanna Instruments$32.99$29.69The HI731339P is a volumetric pipette designed to measure and transfer exactly 100 µL of solution to a cuvette. To obtain the highest accuracy and precision from the HI758 marine calcium... -
On Sale 10%
On Sale 10%ORP/pH/Temperature Tester (HI98121) - Hanna Instruments
Hanna Instruments$239.99$215.99The HI98121 is a waterproof pH, ORP and temperature meter. The housing of this tester has been completely sealed against humidity and is designed to float. Electrode replacement with the stainless... -
On Sale 10%
On Sale 10%pH/Temperature Tester with 0.01 pH Resolution - pHep®5 (HI98128) - Hanna Instruments
Hanna Instruments$154.99$139.49Elevate your water testing with the Hanna Instruments HI98128 pHep®5, a high-precision, pocket-sized tester designed for professionals who demand laboratory-grade accuracy in the field. Combining... -
On Sale 10%
On Sale 10%HI775-26 Alkalinity Reagent (Freshwater) - Hanna Instruments
Hanna Instruments$29.99$26.99Reagents for Alkalinity Checker Specifications Package bottlesSize 30 mLQuantity 1 -
On Sale 10%
On Sale 10%(Box of 25) 35 ppt Salinity Calibration Solution Packs HI70024P (25 x 20 mL) - Hanna Instruments
Hanna Instruments$39.99$35.99HI70024P is a premium quality 35.00 ppt salinity calibration solution that is NIST traceable and contained in portable single-use sachets. Each sachet has the lot number and expiration date stamped... -
On Sale 10%
On Sale 10%HI70031P 1413 20 ml (25 Pack) - Hanna Instruments
Hanna Instruments$39.99$35.99Technical SpecificationsMfr #: HI70031PItem: Calibration Solution Container: 20mLType: Electric ConductivityRange: 1413 uS/cm Container: 20mLProduct... -
On Sale 10%
On Sale 10%HI70031P 1413 20 ml (10 Pack) - Hanna Instruments
Hanna Instruments$15.99$14.39Technical SpecificationsMfr #: HI70031PItem: Calibration Solution Container: 20mLType: Electric ConductivityRange: 1413 uS/cm Container: 20mLProduct... -
On Sale 10%
On Sale 10%Magnetic Mini-Stirrer - 115V (HI190M-1) - Hanna Instruments
Hanna Instruments$89.99$80.99The HI190M is a compact and lightweight magnetic stirrer. With a small footprint, lack of laboratory bench space is no longer a concern. Built to last with a protective covering and a... -
On Sale 10%
On Sale 10%HI781 Saltwater Nitrate Low Range Checker - Hanna Instruments
Hanna Instruments$67.99$61.19Get accurate water testing results with the HI781 Marine Nitrate Low Range Colorimeter. With a digital read out, there is no more struggling to determine colors visually. This nitrate tester's... -
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HI1271 Replacement Spare pH Electrode for HI98100 - Hanna Instruments
Hanna Instruments$29.99$26.99The HI1271 is the replacement pH electrode for the HI98100, HI98103, and HI98115 Checker pH meters. The HI1271 is a single junction pH electrode that has a slim 8 mm polypropylene body that easily... -
On Sale 10%
On Sale 10%HI758 Marine Calcium Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$74.99$67.49Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered Results. BOOM EASY. ZAIR. Zero, Add, Insert, Read... -
On Sale 10%
On Sale 10%Microfiber Cloth for Wiping Cuvettes - 4 (HI731318) - Hanna Instruments
Hanna Instruments$24.99$22.49HI731318 are microfiber cloths for wiping the cuvettes used in Checker HC (HI700 series) handheld colorimeters, photometers (HI96000 portable series and HI83000 benchtop series) and turbidity... -
On Sale 10%
On Sale 10%HI70031P 1413 20 ml (Single Pack) - Hanna Instruments
Hanna Instruments$1.60$1.44Technical SpecificationsMfr #: HI70031PItem: Calibration Solution Container: 20mLType: Electric ConductivityRange: 1413 uS/cm Container: 20mLProduct... -
On Sale 10%
On Sale 10%HI702 High Range Copper Checker (Saltwater) - Hanna Instruments
Hanna Instruments$74.99$67.49The HI702 Checker®HC (Handheld Colorimeter) is a simple, accurate, and cost effective way to measure copper in your saltwater aquarium. Designed as a more accurate alternative to chemical test... -
On Sale 10%
On Sale 10%HI782 Marine Nitrate High Range Checker - Hanna Instruments
Hanna Instruments$74.99$67.49The HI782 Marine Nitrate High Range Colorimeter is specifically designed to quickly and accurately determine high levels of nitrate for saltwater aquariums and marine applications. With a digital... -
On Sale 10%
On Sale 10%HI783 Marine Magnesium Checker HC Handheld Colorimeter - Hanna Instruments
Hanna Instruments$74.99$67.49THESE ARE THE NEWLY UPDATED REAGENTS. Now 1x powder and 1x liquid. The testing process is the same as Alkalinity HI772 with one second liquid reagent. The HI783 Marine Magnesium Checker... -
On Sale 10%
On Sale 10%pH 4 Buffer (500 ML) Bottle HI7004L - Hanna Instruments
Hanna Instruments$19.99$17.99This 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 10%
On Sale 10%Waterproof Pocket pH Tester with 0.1 Resolution - pHep (HI98107) - Hanna Instruments
Hanna Instruments$64.99$58.49The HI98107 pHep® is an easy-to-use pH water tester that makes monitoring water quality simple. This accurate pH tester features 0.1 resolution with automatic two-point calibration and... -
On Sale 10%
On Sale 10%HI784 Marine Ammonia Checker Handheld Colorimeter (Saltwater) - Hanna Instruments
Hanna Instruments$74.99$67.49The 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... -
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(HI98304) DiST4 Waterproof Electrolytic Conductivity (EC) Tester - Hanna Instruments
Hanna Instruments$79.99$71.99The DiST® 4 features a large multi-level LCD which displays both conductivity and temperature readings simultaneously. The EC readings are displayed with a 0.01 mS/cm resolution and with an... -
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(HI740271) Filter Holder with Luer Lock HI781 part - Hanna Instruments
Hanna Instruments$18.99$17.09The HI740271 is a replacement filter holder with Luer lock (1 pc.) for use with the HI781 Low Range Marine Nitrate Checker. -
On Sale 10%
On Sale 10%HI774 Ultra Low Range Phosphate Checker (Saltwater) - Hanna Instruments
Hanna Instruments$74.99$67.49Our HI774 Ultra Low Range Phosphate Checker will be essentially the same specifications as the HI736 Ultra Low Range Phosphorus Checker however it will not require a conversion but read directly in... -
On Sale 10%
On Sale 10%HI758-26 Marine Calcium Checker Reagents (25 Tests) - Hanna Instruments
Hanna Instruments$34.99$31.49Extreme Accuracy. Easy to Test in 4 Steps - Zero the Checker, Add a regent to your water sample, Insert the Vile in the Checker, Read the Numbered Results. BOOM EASY. ZAIR. Zero, Add, Insert, Read... -
On Sale 10%
On Sale 10%Professional Reef Digital Checker Kit - Hanna
Hanna Instruments$329.99$296.99Take the Guesswork Out of Your Reef Tank Maintenance with the Hanna Instruments Reef Professional Kit Achieve the stable and pristine water parameters your corals need to thrive with the Hanna... -
On Sale 10%
On Sale 10%HI736 Phosphorus Ultra Low Range Checker HC (Saltwater) - Hanna Instruments
Hanna Instruments$74.99$67.49The HI736 Checker® HC (Handheld Colorimeter) provides a simple, accurate and cost effective way to measure phosphorus in marine systems including reef tanks. Phosphorus is an important parameter... -
On Sale 10%
On Sale 10%HI774-25 Ultra Low Range Phosphate Checker Reagents - Hanna Instruments
Hanna Instruments$18.99$17.09Reagents for the HI774. Our HI774 Ultra Low Range Phosphate Checker will be essentially the same specifications as the HI736 Ultra Low Range Phosphorus Checker however it will not require a... -
On Sale 10%
On Sale 10%HI782-25 Nitrate High Range Reagents (25 tests) - Hanna Instruments
Hanna Instruments$26.99$24.29HI782-25 (25 tests) The HI782-25 are the replacement reagents for the HI782 Nitrate High Range Checker. These high quality reagents are manufactured in our state-of-the-art facility and... -
On Sale 50%
On Sale 50%(EXPIRED 5/26) HI775-26 Alkalinity Reagent (Freshwater) - Hanna Instruments
Hanna Instruments$29.99$14.99EXPIRED Reagents for Alkalinity Checker Specifications Package bottlesSize 30 mLQuantity 1 -
On Sale 10%
On Sale 10%HI701-25 Free Chlorine Checker Reagent (25 Tests) - Hanna Instruments
Hanna Instruments$17.99$16.19Get your replacement reagents for your HI701 Free Chlorine Checker® HC today. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly marked with... -
On Sale 10%
On Sale 10%HI784-25 Marine Ammonia HC Checker Reagents (25 tests) - Hanna Instruments
Hanna Instruments$28.99$26.09HI784-25 Marine Ammonia Checker HC (Handheld Colorimeter) Reagents are high-quality reagents for use with the HI784 Marine Ammonia (ppm) Checker HC. Reagents are clearly marked with the lot number... -
On Sale 10%
On Sale 10%pHep®+ Waterproof Pocket pH Tester with 0.01 pH Resolution (HI98108) - Hanna Instruments
Hanna Instruments$79.99$71.99The HI98108 pHep+® pH tester provides high accuracy measurements in a rugged pocket-sized design. This ph tester features an exposed temperature sensor for automatic temperature compensated... -
On Sale 10%
On Sale 10%HI764-25 Nitrite Ultra Low Range Reagent (25 Tests) - Hanna Instruments
Hanna Instruments$18.99$17.09The HI764-25 are the replacement reagents for the HI764 Nitrite Ultra Low Range Checker® HC. These high-quality reagents are manufactured in our state-of-the-art facility and are clearly...