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  • HI782-25  Nitrate High Range Reagents (25 tests) - Hanna Instruments

    HI782-25 Nitrate High Range Reagents (25 tests) - Hanna Instruments

    Hanna Instruments

    $16.00
    HI782-25 (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 are clearly marked with the lot number and expiration...
  • HI774-25 Ultra Low Range Phosphate Checker Reagents - Hanna Instruments

    HI774-25 Ultra Low Range Phosphate Checker Reagents - Hanna Instruments

    Hanna Instruments

    $13.00
    Reagents 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 conversion but read directly in parts per million phosphates...
  • HI758-26 Marine Calcium Checker Reagents (25 Tests) - Hanna Instruments

    HI758-26 Marine Calcium Checker Reagents (25 Tests) - Hanna Instruments

    Hanna Instruments

    $27.00
    Extreme 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. Includes reagents for 25x tests. The HI758...
  • HI782 Marine Nitrate High Range Checker - Hanna Instruments

    HI782 Marine Nitrate High Range Checker - Hanna Instruments

    Hanna Instruments

    $63.95
    The 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 read out, there is no more struggling to determine colors...
  • ATI ICP-OES Complete Water Test Kit (w/ Prepaid Shipping Label) - ATI

    ATI ICP-OES Complete Water Test Kit (w/ Prepaid Shipping Label) - ATI

    ATI

    $44.95
    This is the only ICP Test Kit currently on the market that includes the prepaid return shipping label to send the samples in.  Just pop it in the mail box. With the ARCOS II ICP-OES machine, we have chosen an analyser of the highest in its class...
  • HI98319 Salinity & Temperature Tester - Hanna

    HI98319 Salinity & Temperature Tester - Hanna

    Hanna Instruments

    $79.99
    We are pleased to announce our NEW HI98319 waterproof salinity and temperature tester! Waterproof and floats! Includes 4x of the Salinity Calibration Fluid Packets. Automatic Calibration – A 35.00 ppt solution is used for calibration and...
  • HI98103 Checker pH Tester with 0.1 pH Resolution - Hanna Instruments

    HI98103 Checker pH Tester with 0.1 pH Resolution - Hanna Instruments

    Hanna Instruments

    $38.00
    The 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 or two points, automatic buffer recognition,...
  • HI772 Marine Alkalinity (dKH) Checker HC - Hanna Instruments

    HI772 Marine Alkalinity (dKH) Checker HC - Hanna Instruments

    Hanna Instruments

    $64.95
    The Hanna Marine Alkalinity (dKH) Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color...
  • (NEW) Magnesium (MG) Test Kit - Salifert

    (NEW) Magnesium (MG) Test Kit - Salifert

    Salifert

    $19.61
    This is the new Liquid Only test.  There are now two liquids, no powder. Magnesium is present in NSW in a fairly high concentration (1300 - 1400 mg/L). Magnesium is an essential part of chlorophyll, which is necessary for photosynthesis. Without...
  • Nitrate (NO3) Test Kit - Salifert

    Nitrate (NO3) Test Kit - Salifert

    Salifert

    $17.37
    A too high nitrate concentration can result in unwanted algae-growth and these might irritate corals in their neighborhood. Nitrate as such also retards coral growth. The nitrate concentration in a proper functioning reef aquarium should...
  • pH 7.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments

    pH 7.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments

    Hanna Instruments

    $1.49
    HI70007P is a premium quality pH 7.01 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 time one is opened. Hanna’s line of calibration buffers have...
  • Ammonia Alert - Seachem

    Ammonia Alert - Seachem

    Seachem

    $8.10
    Ammonia Alert™ is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test kits, chemicals, or procedures are...
  • HI774 Ultra Low Range Phosphate Checker (Saltwater) - Hanna Instruments

    HI774 Ultra Low Range Phosphate Checker (Saltwater) - Hanna Instruments

    Hanna Instruments

    $63.95
    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 conversion but read directly in parts per million phosphates compared to parts per...
  • Triton ICP-OES Water Test w/Prepaid Shipping Label - Triton Labs

    Triton ICP-OES Water Test w/Prepaid Shipping Label - Triton Labs

    Triton

    $49.00
    Now Includes a Prepaid USPS First Class Shipping Label + Testing is Now Done in the USA! The results of this test provide you with the most detailed analysis of marine aquarium water you've ever seen, enabling you to understand exactly what's missing,...
  • Salinity Refractometer - Generic

    Salinity Refractometer - Generic

    All Misc Brands

    $29.95
    It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the specific gravity and concentration (part per Thousand)...
  • HI781 Saltwater Nitrate Low Range Checker - Hanna Instruments

    HI781 Saltwater Nitrate Low Range Checker - Hanna Instruments

    Hanna Instruments

    $63.95
    Get 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 compact design fits in your pocket or stores easily in...
  • Hanna HI758 Marine Calcium Checker HC (Saltwater) - Hanna Instruments

    Hanna HI758 Marine Calcium Checker HC (Saltwater) - Hanna Instruments

    Hanna Instruments

    $63.95
    Extreme 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. Includes reagents for 25x tests. The HI758...
  • (NEW) Calcium (Ca) Ultra Test Kit - Salifert

    (NEW) Calcium (Ca) Ultra Test Kit - Salifert

    Salifert

    $18.81
    Calcium is a major constituent of calcareous algae, skeletal material of hard corals and the skeletal needles of soft/leather corals. Calcium also fulfills many biological functions.Quite often a too low calcium concentration retards coral and calcareous...
  • Carbonate Hardness & Alkalinity (KH/ ALK) Test Kit - Salifert

    Carbonate Hardness & Alkalinity (KH/ ALK) Test Kit - Salifert

    Salifert

    $16.46
    Calcium alone cannot form the skeletal material of corals and allow calcareous algae to grow. Some other substances are needed as well. A few other constituents are carbonate and bicarbonate. These two substances also have a major impact on the...
  • PINPOINT pH Probe Lab Grade Double Junction - American Marine

    PINPOINT pH Probe Lab Grade Double Junction - American Marine

    American Marine

    $39.99
    The PINPOINT® pH Electrode equals and exceeds lab quality by both specifcation and design.  The PINPOINT® pH Electrode has been designed as the most rugged, precise and full-featured probe offered to both the clinical lab and aquaculture...
  • Pinpoint ORP (Redox) Calibration Fluid - American Marine

    Pinpoint ORP (Redox) Calibration Fluid - American Marine

    American Marine

    $4.95
    Another American Marine first. ORP/REDOX calibration fluid. With a precise measurement of 400mV this calibration fluid is included with every PINPOINT® ORP Monitor and PINPOINT® ORP Controller. Occasional retesting with this fluid will keep your...
  • MCP Test Kit Marine Master Care - Red Sea

    MCP Test Kit Marine Master Care - Red Sea

    Red Sea

    $74.99
    Easy-to-use tests for the accurate monitoring of all of the important parameters during the biological maturation of marine and reef aquariums NH3/NH4 | NO3 | NO2 | pH | KH Red Sea Marine Care Test Kit is Complete multi-test pack including all of...
  • PH Calibration Buffer (Combo Pack) 4.0, 7.0, 10.0 - Hanna Instruments

    PH Calibration Buffer (Combo Pack) 4.0, 7.0, 10.0 - Hanna Instruments

    Hanna Instruments

    $5.75
    HI70004P/H17007P/HI0010P are premium quality pH 4.01/7.01/10.01 calibration buffer solutions. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line...
  • Electrode Storage Solution for pH/ORP (230 ml)  HI70300M  - Hanna Instruments

    Electrode Storage Solution for pH/ORP (230 ml) HI70300M - Hanna Instruments

    Hanna Instruments

    $13.00
    HI70300M is a storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes. It is necessary to store a pH electrode in a solution in order to keep the glass membrane of the pH...
  • HI701-25 Free Chlorine Checker Reagent (25 Tests) - Hanna Instruments

    HI701-25 Free Chlorine Checker Reagent (25 Tests) - Hanna Instruments

    Hanna Instruments

    $10.00
    Get 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 the lot number and expiration date on each packet for...