McMaster-Carr logo
    Filter by
    System of Measurement
    DFARS Specialty Metals
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Number of Strips
    Test Type
    Number of Color Points
    Container Type
    Autoclavable
    pH Numeric Increments
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    101 Products

    Water Test Kits

    Image of Product. Front orientation. Water Test Kits. Water Test Kits, Analog.
    Image of Product. Front orientation. Water Test Kits. Water Test Kits, Digital.

    Analog

    Digital

    All the chemicals and labware you need for on-site sampling and water-quality testing.
    Digital—Digital kits offer simpler and more accurate testing than analog kits. While analog kits require you to visually match color against a chart, these kits electronically measure color for you, even in dim lighting. The digital screen shows you a precise measurement.
    Test Kits
    Refill Chemicals
    For Testing
    Range
    Test
    Type
    No. of
    Tests
    Each
    Each
    Arsenic0.002-0.30 ppmAnalog51450T3000000———0
    Bacteria1 Colony per 100 ml WaterAnalog11439T120000———0
    Chloride0-200 ppm/0-20,000 ppmAnalog501439T17000001439T25000000
    Dissolved Oxygen0-10 ppmAnalog501439T13000001439T5400000
    Free Chlorine, Total Chlorine0.2-3.0 ppmAnalog501439T80000001439T5200000
    Hydrogen Sulfide, Sulfide0-5.85 ppmDigital901439T730000001439T7700000
    Iron0-5 ppmDigital501439T710000001439T7500000
    Iron0.5-10 ppmAnalog901439T2300000———0
    Lead0.015 ppmAnalog25829T6100000———0
    Molybdenum1-10 ppmAnalog1001439T330000001439T3400000
    Nitrate Nitrogen0.25-10.0 ppmAnalog501439T220000001439T4100000
    Phosphate1.0-10.0 ppm/10-100 ppmAnalog501439T21000000———0
    pH3-10.5 pHAnalog1001439T2000001439T4600000
    Total Alkalinity0-200 ppmAnalog501439T15000001439T2400000
    Total Hardness0-200 ppmAnalog501439T19000001439T2600000
     

    Water-Quality Test Strips

    Image of ProductInUse. Front orientation. Water Test Strips. Water-Quality Test Strips.
    Dip these strips into your liquid to quickly test water conditions. Strips change color to indicate the value reached; match the color of the strip to the color chart on the bottle to interpret the results.
    For Testing
    Range
    No. of
    Strips
    Each
    Ammonia0 ppm to 6 ppm2511235T65000000
    Chloride0 ppm to 500 ppm5011235T7400000
    Copper0 ppm to 3 ppm2511235T5500000
    Free Chlorine0 ppm to 800 ppm5011235T3100000
    Free Chlorine, Total Chlorine0 ppm to 10 ppm2511235T7100000
    Hydrogen Peroxide0 ppm to 90 ppm2511235T3300000
    Iron0 ppm to 5 ppm2511235T4200000
    Molybdenum0 ppm to 5 ppm5011235T3400000
    Nitrate, Nitrite0 ppm to 50 ppm 0 ppm to 10 ppm5011235T6800000
    Peracetic Acid0 ppm to 160 ppm5011235T3500000
    Phosphorus0 ppb to 2,500 ppb2511235T7500000
    Salinity0% to 150%5011235T3800000
    Total Alkalinity0 ppm to 180 ppm5011235T700000
    Total Hardness0 ppm to 180 ppm5011235T3200000
    Total Hardness0 gpg to 58 gpg5011235T6600000
    pH0 pH to 14 pH10011235T6100000
    pH0 pH to 6 pH10011235T6300000
    pH6.5 pH to 13 pH10011235T6200000
    pH4 pH to 10 pH5011235T7300000
    Free Chlorine, Total Chlorine
    Total Alkalinity
    Total Hardness
    pH
    0 ppm to 10 ppm
    0 ppm to 425 ppm
    0 ppm to 240 ppm
    6.2 pH to 8.4 pH
    3011235T6900000

    Combination Water Test Kits

    Image of Product. Front orientation. Water Test Kits. Combination Water Test Kits.
    Test for contaminants before installing water-treatment equipment such as boilers and filters. You can also check your pipes and equipment for improper chemical levels that can cause corrosion and scale buildup, shortening their life.
    367 Tests—367-test kits include tests for six common water-quality parameters in boiler systems and cooling towers.
    340 Tests—340-test kits include tests for monitoring municipal water, which is often treated with chlorine.
    290 Tests—290-test kits include tests that help you monitor well water, which often contains sulfur compounds.
    Test Kits
    Refill Chemicals
    For Testing
    Range
    Test
    Type
    No. of
    Tests
    Each
    Each
    367 Tests
    Total Hardness
    Phenolphthalein Alkalinity, Total Alkalinity
    Chloride
    Dissolved Oxygen
    Phosphate
    Sulfite
    5.0 ppm to 15.0 ppm, 100 ppm to 300 ppm
    100 ppm to 300 ppm, 500 ppm to 1,500 ppm
    100 ppm to 300 ppm, 5,000 ppm to 15,000 ppm
    1.0 ppm to 12.0 ppm
    1.0 ppm to 10 ppm, 10 ppm to 100 ppm
    20 ppm to 60 ppm, 50 ppm to 150 ppm
    Analog
    Analog
    Analog
    Analog
    Analog
    Analog
    75
    75
    75
    30
    12
    100
    1439T1110000000———0
     
    340 Tests
    Total Hardness
    Iron
    Total Dissolved Solids (TDS)
    Total Chlorine
    pH
    0-30 gpg
    1-5 ppm
    0- 9,990 ppm
    0.1-2.0 ppm
    5-10 pH
    Analog
    Analog
    Digital
    Analog
    Analog
    120
    50

    50
    120
    3771N110000003771N12000000
     
    290 Tests
    Total Hardness
    Iron
    Total Dissolved Solids (TDS)
    Hydrogen Sulfide, Sulfide
    0-30 gpg
    1-5 ppm
    0-9,990 ppm
    0.2-5.0 ppm
    Analog
    Analog
    Digital
    Analog
    120
    50

    120
    3771N130000003771N1400000
     

    pH Testing Paper

    Image of Product. Front orientation. pH Testing Paper.
    Check pH levels without a meter. When this testing paper is dipped in a sample, it changes color to indicate pH. Match the color of the testing paper to the color chart to determine the sample’s pH.
    pH Range,
    pH
    pH Numeric Increments,
    pH
    No. of Color
    Points
    Wd.
    Lg.,
    ft.
    Each
    0 to 131141/2"501434T31000000
    1 to 6161/4"151434T320000
    1 to 111111/2"501434T1100000
    3 to 5.50.561/2"501434T1500000
    3 to 9171/2"501434T1300000
    6 to 80.471/2"501434T1600000
    6.5 to 130.5141/4"151434T90000
    8 to 9.50.541/4"151434T330000
    10 to 120.551/4"151434T350000

    Disposable Liquid Samplers

    Image of Product. Front orientation. ZoomedIn view. Liquid Samplers. Disposable Liquid Samplers, Style A.
    Image of Product. Front orientation. ZoomedIn view. Liquid Samplers. Disposable Liquid Samplers, Style B.
    Image of Product. Front orientation. Liquid Samplers. Disposable Liquid Samplers, Style C.

    Style

    A

    Style

    B

    Style

    C

    Toss these samplers after you collect and transfer liquid samples—they’re disposable to reduce the risk of cross contamination.
    Style A
    Image of Product. Front orientation. ZoomedIn view. Liquid Samplers. Disposable Liquid Samplers, Style A.
    Insert the Style A samplers into your liquid and seal the top opening with your thumb to collect a sample.
    Overall
    Each
    Package
    Cap.,
    ml
    Dia.
    Lg.
    Color
    Autoclavable
    Max. Temp.,
    ° F
    Each
    Pkg.
    Qty.
    Pkg.
    HDPE
    255/16"42"WhiteNo1808221K11100000258221K71000000
    503/8"42"WhiteNo1808221K1120000258221K7200000
    1001/2"42"WhiteNo1808221K110000258221K8100000
    1505/8"42"WhiteNo1808221K160000258221K8200000
     
    Style B
    Image of Product. Front orientation. ZoomedIn view. Liquid Samplers. Disposable Liquid Samplers, Style B.
    The syringe-like design of the Style B samplers lets you extract liquid without manually creating a vacuum.
    Overall
    Each
    Package
    Cap.,
    ml
    Dia.
    Lg.
    Color
    Autoclavable
    Max. Temp.,
    ° F
    Each
    Pkg.
    Qty.
    Pkg.
    HDPE
    757/8"18"WhiteNo1808221K2600000128221K83000000
    2507/8"42"WhiteNo1808221K330000128221K8400000
    5007/8"84"WhiteNo1808221K470000128221K8500000
    6407/8"108"WhiteNo1808221K11300000128221K73000000
     
    Style C
    Image of Product. Front orientation. Liquid Samplers. Disposable Liquid Samplers, Style C.
    Style C sampler have a leakproof lid, so they’re good for shipping and storing small samples. They have a needle with a luer lock connection, so it's easy to remove or change the needle. The membrane seals automatically after you remove the needle. These samplers come with a tamper seal label to put over the lid, showing if the bottle has been opened.
    Bottle
    Needle
    Cap.,
    ml
    Dia.
    Ht.
    Material
    Cap Material
    Ga.
    Lg.
    ID
    OD
    Material
    Fitting
    Connection
    Color
    Autoclavable
    Max. Temp.,
    ° F
    Features
    Includes
    Each
    451 1/2"4 1/4"Polypropylene
    Polypropylene
    181 1/2"0.033"0.05"304 Stainless Steel
    Luer Lock
    ClearNo110Leakproof LidOne Tamper Seal Label8221K2200000
     

    Sterile Disposable Liquid Samplers

    Image of Product. Front orientation. Liquid Samplers. Sterile Disposable Liquid Samplers, Style A.
    Image of Product. Front orientation. Liquid Samplers. Sterile Disposable Liquid Samplers, Style B.

    Style

    A

    Style B

    To prevent contaminating samples, these samplers are sterilized by gamma irradiation and individually bagged. Throw them away after you collect and transfer liquid to avoid cross contamination.
    Style A
    Image of Product. Front orientation. Liquid Samplers. Sterile Disposable Liquid Samplers, Style A.
    Insert Style A samplers into the liquid and seal the top opening with your thumb to collect a sample—like a straw.
    Overall
    Cap.,
    ml
    Dia.
    Lg.
    Color
    Autoclavable
    Max. Temp.,
    ° F
    Pkg.
    Qty.
    Pkg.
    HDPE
    1001/2"42"WhiteNo180259726N11000000
    1505/8"42"WhiteNo180259726N1200000
     
    Style B
    Image of Product. Front orientation. Liquid Samplers. Sterile Disposable Liquid Samplers, Style B.
    The syringe-like design of Style B samplers lets you extract liquid without manually creating a vacuum.
    Overall
    Cap.,
    ml
    Dia.
    Lg.
    Color
    Autoclavable
    Max. Temp.,
    ° F
    Pkg.
    Qty.
    Pkg.
    HDPE
    757/8"18"WhiteNo180129726N13000000
    2507/8"42"WhiteNo180129726N1400000
     

    Cleaned and Packaged Disposable Liquid Samplers

    Image of Product. Front orientation. Liquid Samplers. Cleaned and Packaged Disposable Liquid Samplers, Style A.
    Image of Product. Front orientation. Liquid Samplers. Cleaned and Packaged Disposable Liquid Samplers, Style B.

    Style A

    Style B

    Often used to collect environmental water samples, these samplers are cleaned and packaged in accordance with EPA protocol B.
    Style A
    Image of Product. Front orientation. Liquid Samplers. Cleaned and Packaged Disposable Liquid Samplers, Style A.
    Insert the Style A samplers into your liquid and seal the top opening with your thumb to collect a sample.
    Overall
    Cap.,
    ml
    Dia.
    Lg.
    Autoclavable
    Max. Temp.,
    ° F
    Each
    Polyethylene
    1001/2"42"No1808221K1300000
    1505/8"42"No1808221K180000
     
    Style B
    Image of Product. Front orientation. Liquid Samplers. Cleaned and Packaged Disposable Liquid Samplers, Style B.
    The syringe-like design of the Style B samplers lets you extract liquid without manually creating a vacuum.
    Overall
    Cap.,
    ml
    Dia.
    Lg.
    Autoclavable
    Max. Temp.,
    ° F
    Each
    Polyethylene
    757/8"20 1/2"No1808221K2800000
    2507/8"42"No1808221K350000
    1,0001 5/8"42"No1808221K5700000
     

    Disposable Thick Liquid Samplers

    Image of Product. Front orientation. Liquid Samplers. Disposable Thick Liquid Samplers.
    Extract samples of thick liquids, such as oil, with a maximum viscosity of 100 cP.
    Overall
    Cap.,
    ml
    Max. Viscosity,
    cP
    Dia.
    Lg.
    Autoclavable
    Max. Temp.,
    ° F
    Each
    Polyethylene
    2001007/8"39 1/2"No1408221K61000000
     

    Sterile Disposable Thick Liquid Samplers

    Image of Product. Front orientation. Liquid Samplers. Sterile Disposable Thick Liquid Samplers.
    This sampler is cleaned and bagged in a Class 7 clean room. Each bag is marked with a lot number. Use this sampler to extract thick liquids, such as oil, with a maximum viscosity of 100 cP.
    Overall
    Cap.,
    ml
    Max. Viscosity,
    cP
    Dia.
    Lg.
    Autoclavable
    Max. Temp.,
    ° F
    Each
    Polyethylene
    2001007/8"39 1/2"No1408221K62000000
     

    Vacuum Liquid Samplers

    Image of Product. Front orientation. Liquid Samplers. Vacuum Liquid Samplers.
    Pump the handle to draw liquid out of a tank or drum through a hose into sample bottles. Only the hose and hose weight come into contact with the liquid, reducing the possibility of cross contamination.
    Bottle
    Hose
    No. of
    Bottles
    Cap.,
    ml
    Ht.
    Width
    Dp.
    Material
    ID
    OD
    Lg.,
    ft.
    Material
    Wt. Material
    Autoclavable
    Pump
    Material
    Max. Temp.,
    ° F
    Includes
    Each
    101004 1/4"1 3/4"1 3/4"Polyethylene0.24"0.31"32Polyethylene304 Stainless Steel
    NoPolyethylene14020 Tamper Seal Labels, Hose Cutter, Case1513N110000000
     
    Accessories and Replacements for Liquid Samplers

    Large-Capacity Sterile Disposable Liquid Samplers

    Image of Product. Front orientation. Liquid Samplers. Large-Capacity Sterile Disposable Liquid Samplers.
    Sterilized so they won’t contaminate your samples or lines, these liquid samplers are often used in food processing, pharmaceutical, and biotech applications. Unlike traditional sampling methods such as ladles and cups, they don’t expose samples to the surrounding environment. These samplers use gravity to draw out liquid through the needle directly into the bag. The needle has a luer lock connection, so it’s easy to remove the needle after you take the sample. You can also swap the needle out beforehand if your application needs a different kind.
    These bags are best for taking large samples. They’re ISO 10993 compliant, so they’re approved for use in medical devices. They meet USP Class VI, meaning they’re made of plastic that’s been tested to the highest standards to reduce the risk of leaching into biological samples. Manufactured free of contaminants and allergens, they are BPA- and latex-free. They’re also TSE/BSE compliant, so they’ve never come into contact with any animal products.
    These liquid samplers are typically used with sampling tube fittings.
    Bag
    Hose
    Needle
    Cap.,
    ml
    Ht.
    Wd.
    Thk.,
    mil
    ID
    OD
    Lg.,
    ft.
    Material
    Ga.
    Lg.
    ID
    OD
    Material
    Fitting
    Connection
    Color
    Max.
    Temp.
    Specs.
    Met
    USP
    Class
    Each
     
    PVC Bag
    2508"5"141/8"3/16"3PVC
    181 1/2"0.033"0.05"304 Stainless Steel
    Luer Lock
    ClearNot RatedISO 10993VI7013N1200000
    2,00014"7"141/8"3/16"3PVC
    181 1/2"0.033"0.05"304 Stainless Steel
    Luer Lock
    ClearNot RatedISO 10993VI7013N130000
     

    Liquid Samplers for Extra-Large Tanks

    Image of Product. Front orientation. Liquid Samplers. Liquid Samplers for Extra-Large Tanks.
    Lower these samplers with a chain or cable to collect samples from the bottom of large tanks. Also known as bomb samplers, they open automatically when they touch the bottom of the tank or they can be opened manually with a pull line.
    Overall
    Cap.,
    ml
    Dia.
    Lg.
    Eyebolt
    ID
    Seal Material
    Autoclavable
    Each
    304 Stainless Steel
    1201 1/8"15"3/8"Viton® Fluoroelastomer
    Yes2324N110000000
    4752 1/2"11"9/16"Viton® Fluoroelastomer
    Yes2324N12000000
     

    Liquid Samplers

    Image of ProductInUse. Front orientation. Liquid Samplers. Liquid Samplers.
    Image of Product. Front orientation. Liquid Samplers. Liquid Samplers, Polypropylene with Valve Operation.
    Image of Product. Front orientation. Liquid Samplers. Liquid Samplers, PTFE with Button Operation.
    Image of Product. Front orientation. Liquid Samplers. Liquid Samplers, 316 Stainless Steel with Pull Ring Operation.

    Polypropylene

    with Valve

    Operation

    PTFE

    with

    Button

    Operation

    316

    Stainless

    Steel

    with Pull

    Ring

    Operation

    Collect liquid samples from drums, tanks, and other containers. These samplers open and close, so you can gather samples at a targeted depth in your tank. All are autoclavable, so you can sterilize them with steam.
    Polypropylene with Valve Operation—Polypropylene samplers have good chemical resistance. They operate with a valve you can open and close.
    PTFE with Button Operation—PTFE samplers stand up to harsher chemicals than polypropylene samplers. Their naturally slippery surface helps thick liquids slide off for easy cleanup. You can use them one-handed—press the button to let liquid flow in, then release it to close.
    316 Stainless Steel with Pull Ring Operation—Stainless steel samplers are the most durable and chemical resistant. They also resist corrosion. Less porous and less likely to scratch than plastic, they’re easy to sanitize. Open and close them by pulling up on the center ring.
    Overall
    Cap.,
    ml
    Dia.
    Lg.
    Autoclavable
    Max. Temp.,
    ° F
    Each
    Polypropylene with Valve Operation
    1401"19 1/2"Yes1401425N101000000
    2801"39"Yes1401425N102000000
    5001"39" to 78 1/2"Yes1401425N103000000
     
    PTFE with Button Operation
    2501 1/4"39 1/2"Yes1401425N11000000
     
    316 Stainless Steel with Pull Ring Operation
    501 1/4"18"Yes1425N13000000
    1001 1/4"22"Yes1425N14000000
     
    back to top