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pH

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  • 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,...
  • 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...
  • On Sale 15%
    PINPOINT pH Probe Lab Grade Double Junction - American Marine
    On Sale 15%

    PINPOINT pH Probe Lab Grade Double Junction - American Marine

    American Marine

    $39.99
    $33.99
    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...
  • pH 10.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments

    pH 10.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments

    Hanna Instruments

    $1.49
    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 time one is opened. Hanna’s line of calibration buffers...
  • 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...
  • On Sale 15%
    PINPOINT pH 7.0 Calibration Fluid (5 Pack)
    On Sale 15%

    PINPOINT pH 7.0 Calibration Fluid (5 Pack)

    American Marine

    $5.95
    $5.06
    PINPOINT® High-Precision pH Calibration Fluids come in plastic envelope packets and are extremely accurate and field portable. Each packet contains ample fluid for calibration (about 30 ml). There is a free sample of these included with each...
  • pH 4.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments

    pH 4.01 Calibration Buffer 20 ml (Single Pack) - Hanna Instruments

    Hanna Instruments

    $1.49
    HI70004P is a premium quality pH 4.01 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...
  • Electrode Storage Solution for pH/ORP (500 mL)  HI70300L  - Hanna Instruments

    Electrode Storage Solution for pH/ORP (500 mL) HI70300L - Hanna Instruments

    Hanna Instruments

    $15.00
    HI70300L 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...
  • 10.00 pH Calibration Fluid (Single Pack) - Neptune Systems

    10.00 pH Calibration Fluid (Single Pack) - Neptune Systems

    Neptune Systems

    $1.95
    Neptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration procedure.  Over the course of a couple months, it is...
  • Checker Plus pH Tester (HI98100) Plus  - Hanna Instruments

    Checker Plus pH Tester (HI98100) Plus - Hanna Instruments

    Hanna Instruments

    $48.00
    The 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 in 1991. From students to researchers, the Checker has...
  • On Sale 15%
    PINPOINT pH 10.0 Calibration Fluid (5 Pack)
    On Sale 15%

    PINPOINT pH 10.0 Calibration Fluid (5 Pack)

    American Marine

    $5.95
    $5.06
    PINPOINT® High-Precision pH Calibration Fluids come in plastic envelope packets and are extremely accurate and field portable. Each packet contains ample fluid for calibration (about 30 ml). There is a free sample of these included with each...
  • Electrode Cleaning Solution (500 ml)  HI7061L  - Hanna Instruments

    Electrode Cleaning Solution (500 ml) HI7061L - Hanna Instruments

    Hanna Instruments

    $15.00
    HI7061L is a general purpose cleaning solution that can be used for a variety of applications. Electrodes can become dirty from use and will produce inaccurate results even as they read correctly in a pH buffer. Hanna’s cleaning solutions eliminate...
  • 7.00 pH Calibration Fluid (5 Pack) - Neptune Systems

    7.00 pH Calibration Fluid (5 Pack) - Neptune Systems

    Neptune Systems

    $9.99
    Neptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration procedure.  Over the course of a couple months, it is...
  • 10.00 pH Calibration Fluid (5 Pack) - Neptune Systems

    10.00 pH Calibration Fluid (5 Pack) - Neptune Systems

    Neptune Systems

    $9.99
    Neptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration procedure.  Over the course of a couple months, it is...
  • On Sale 15%
    pH Test Kit - Salifert
    On Sale 15%

    pH Test Kit - Salifert

    Salifert

    $10.92
    $9.28
    If the pH is too low then the cause may be a too low alkalinity and/or insufficient aeration. A low pH can be corrected by improving aeration and by increasing the alkalinity to NSW (Natural seawater) value or upto approx 25% above NSW levels. The...
  • HI780 Saltwater pH Checker - Hanna Instruments

    HI780 Saltwater pH Checker - Hanna Instruments

    Hanna Instruments

    $63.95
    Get 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 your pocket or stores easily in your shop. Easier to...
  • On Sale 15%
    Spot Check Marine Water Test (Single Test) - SaltwaterAquarium.com
    On Sale 15%

    Spot Check Marine Water Test (Single Test) - SaltwaterAquarium.com

    SaltwaterAquarium

    $24.99
    $21.24
    Spot Check - Get marine water testing for the 8 core elements of a saltwater fish tank from the comfort of home.  Use this mail in water test to spot check your marine aquarium and/or verify what your seeing on your home test kits. It is time to...
  • HI1271 Replacement Spare pH Electrode for HI98100 - Hanna Instruments

    HI1271 Replacement Spare pH Electrode for HI98100 - Hanna Instruments

    Hanna Instruments

    $21.00
    The 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 fits into test tube and other small sized vessels...
  • pH 7.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments

    pH 7.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments

    Hanna Instruments

    $14.39
    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...
  • On Sale 15%
    PINPOINT pH 4.0 Calibration Fluid (5 Pack)
    On Sale 15%

    PINPOINT pH 4.0 Calibration Fluid (5 Pack)

    American Marine

    $5.95
    $5.06
    PINPOINT® High-Precision pH Calibration Fluids come in plastic envelope packets and are extremely accurate and field portable. Each packet contains ample fluid for calibration (about 30 ml). There is a free sample of these included with each...
  • On Sale 15%
    Ammonia & pH Alert Combo 2 Pack (1 Year) Freshwater - Seachem
    On Sale 15%

    Ammonia & pH Alert Combo 2 Pack (1 Year) Freshwater - Seachem

    Seachem

    $16.22
    $13.79
    No strips, no tests, just constant readings. Now Ammonia Alert and pH Alert come together! Ammonia Alert and pH Alert employ Seachem Sensor Technology; a sensor changes color reversibly to alert you to shifts in ammonia levels and shifts in pH...
  • On Sale 15%
    MC120 PH Monitor w/Probe & Mounting Kit - Milwaukee Instruments
    On Sale 15%

    MC120 PH Monitor w/Probe & Mounting Kit - Milwaukee Instruments

    Milwaukee Instruments

    $87.00
    $73.95
    The MC Monitors are designed to continuously monitor pH, EC or TDS values directly in your reservoir. Each unit features a user select able set-point. An LED visual alarm is activated and flashes when the pH, EC or TDS level rises either Above or Below...
  • pH 10.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments

    pH 10.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments

    Hanna Instruments

    $14.39
    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 time one is opened. Hanna’s line of calibration buffers...
  • On Sale 15%
    Reef Buffer (1KG) - Seachem
    On Sale 15%

    Reef Buffer (1KG) - Seachem

    Seachem

    $23.16
    $19.69
    Reef Buffer™ will also raise carbonate alkalinity; however, it is intended primarily for use as a buffer in a reef system where the maintenance of a pH of 8.3 is often difficult. When pH is not an issue, Reef Builder™ or Reef Carbonate™...
  • On Sale 15%
    MA911B/2 pH Electrode/Probe - Milwaukee
    On Sale 15%

    MA911B/2 pH Electrode/Probe - Milwaukee

    Milwaukee Instruments

    $38.99
    $33.14
    Replacement double junction pH electrode for Milwaukee pH meter or pH/CO2 meter. BNC connector.
  • pH 4.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments

    pH 4.01 Calibration Buffer 20 ml (Pack of 10) - Hanna Instruments

    Hanna Instruments

    $14.39
    HI70004P is a premium quality pH 4.01 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...
  • On Sale 15%
    Marine Buffer (1 KG) - Seachem
    On Sale 15%

    Marine Buffer (1 KG) - Seachem

    Seachem

    $23.16
    $19.69
    Raises and maintains pH at 8.3 in all saltwater aquariums Can be used safely in reef tanks Contains borate for added stability Contains magnesium to alleviate precipitation effects Marine Buffer® will safely raise marine pH to 8.3. It will...
  • pH 7.01 Calibration Buffer 20 ml (Pack of 25) - Hanna Instruments

    pH 7.01 Calibration Buffer 20 ml (Pack of 25) - Hanna Instruments

    Hanna Instruments

    $29.00
    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...
  • On Sale 15%
    MW102 PH & Temperature Meter w/Auto Calc
    On Sale 15%

    MW102 PH & Temperature Meter w/Auto Calc

    Milwaukee Instruments

    $122.00
    $103.70
    Standard portable meters with no frills! Milwaukee’s low cost durable meters for quick and reliable measurements.  Milwaukee’s Standard meters are manufactured to be easy to use, practical and accurate. Ideal for the classroom,...
  • High Range pH Test Kit (160 Tests) - API

    High Range pH Test Kit (160 Tests) - API

    API

    $9.48
    High Range pH Test Kit The API® High Range pH Test Kit measures pH changes in marine aquariums, aquariums with African Cichlids, and very alkaline tap water. The API® High Range pH Test Kit reads the pH of water within the high range of 7.4...
  • On Sale 15%
    Marine (pH) Test Kit - Elos
    On Sale 15%

    Marine (pH) Test Kit - Elos

    ELOS

    $16.50
    $14.03
    The pH-value or acid value indicates how acidic or alkaline water is. It is a measure of the concentration of the acidic or alkaline components in a hydrous solution. Pure water will react neutral and has a pH-value of 7. If the acidic components are...