Water-Quality Combination 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-test kits include tests for six common water-quality parameters in boiler systems and cooling towers.
340-test kits include tests for monitoring municipal water, which is often treated with chlorine.
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 | Number of Tests | Each | Each | ||
367-test kits | |||||||
Total Hardness Phenolphthalein Alkalinity, Total Alkalinity Dissolved Oxygen Phosphate Sulfite Chloride | 5.0-15.0 ppm, 100-300 ppm 100-300 ppm, 500-1500 ppm 1.0-12.0 ppm 0-10 ppm 20-60/50-150 ppm 100-300/5,000-15,000 ppm | Analog Analog Analog Analog Analog Analog | 75 75 30 12 100 75 | 00000000 | 0000000 | 000000 | 00 |
340-test kits | |||||||
Total Hardness Iron Total Chlorine pH Total Dissolved Solids (TDS) | 0-30 gpg 1-5 ppm 0.1-2.0 ppm 5 to 10 pH 0-9,990 ppm | Analog Analog Analog Analog Digital | 120 50 50 120 | 0000000 | 000000 | 0000000 | 000000 |
290-test kits | |||||||
Total Hardness Iron Hydrogen Sulfide, Sulfide Total Dissolved Solids (TDS) | 0-30 gpg 1-5 ppm 0.2-5.0 ppm 0-9,990 ppm | Analog Analog Analog Digital | 120 50 120 | 0000000 | 000000 | 0000000 | 00000 |
Water-Quality Test Kits


All the chemicals and labware you need for on-site sampling and water-quality testing.
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 | ||
Arsenic | 0.002-0.30 ppm | Analog | 5 | 000000 | 000000 | 000000 | 00 |
Bacteria | 1 colony per 100 ml water | Analog | 1 | 0000000 | 0000 | 000000 | 00 |
Chloride | 0-200/0-20,000 ppm | Analog | 50 | 0000000 | 00000 | 0000000 | 000000 |
Dissolved Oxygen | 0-10 ppm | Analog | 50 | 0000000 | 00000 | 0000000 | 00000 |
Free Chlorine, Total Chlorine | 0.2-3.0 ppm | Analog | 50 | 000000 | 000000 | 0000000 | 00000 |
Hydrogen Sulfide, Sulfide | 0-5.85 ppm | Digital | 90 | 0000000 | 000000 | 0000000 | 00000 |
Iron | 0-5 ppm | Digital | 50 | 0000000 | 000000 | 0000000 | 00000 |
Iron | 0.5-10 ppm | Analog | 90 | 0000000 | 00000 | 0000000 | 00000 |
Lead | 0.015 ppm | Analog | 2 | 0000000 | 00000 | 000000 | 00 |
Molybdenum | 1-10 ppm | Analog | 100 | 0000000 | 000000 | 0000000 | 00000 |
Nitrate Nitrogen | 0.25-10.0 ppm | Analog | 50 | 0000000 | 000000 | 0000000 | 00000 |
Phosphate | 1.0-10.0/10-100 ppm | Analog | 50 | 0000000 | 000000 | 0000000 | 00000 |
pH | 3.0 to 10.5 pH | Analog | 100 | 000000 | 00000 | 0000000 | 00000 |
Total Alkalinity | 0-200 ppm | Analog | 50 | 0000000 | 00000 | 0000000 | 00000 |
Total Hardness | 0-200 ppm | Analog | 50 | 0000000 | 00000 | 0000000 | 00000 |
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 | |
Ammonia | 0-6 ppm | 25 | 00000000 | 000000 |
Chloride | 0.003-.06%; 30-600 ppm | 40 | 00000000 | 000000 |
Copper | 0-3 ppm | 25 | 00000000 | 00000 |
Free Chlorine | 0-800 ppm | 50 | 00000000 | 00000 |
Free Chlorine, Total Chlorine | 0-10 ppm | 50 | 00000000 | 00000 |
Hydrogen Peroxide | 0-90 ppm | 25 | 00000000 | 00000 |
Iron | 0-5 ppm | 25 | 00000000 | 00000 |
Molybdenum | 0-5 ppm | 50 | 00000000 | 00000 |
Nitrate, Nitrite | 0-50 ppm, 0-3 ppm | 25 | 00000000 | 00000 |
Peracetic Acid | 0-160 ppm | 50 | 00000000 | 00000 |
Phosphorus | 0-50 ppm | 50 | 00000000 | 00000 |
Salinity | 0-150% Concentration | 50 | 00000000 | 00000 |
Total Alkalinity | 0-240 ppm | 50 | 00000000 | 00000 |
Total Hardness | 0-180 ppm | 50 | 00000000 | 00000 |
Total Hardness | 0-25 gpg | 50 | 00000000 | 00000 |
pH | 0.0 to 14.0 pH | 100 | 00000000 | 00000 |
pH | 0.0 to 6.0 pH | 100 | 00000000 | 00000 |
pH | 4.0 to 9.0 pH | 50 | 00000000 | 00000 |
pH | 6.5 to 13.0 pH | 100 | 00000000 | 00000 |
For Testing | Range | No. of Strips | Each | |
Free Chlorine; Total Chlorine Total Alkalinity Total Hardness pH | 1-10 ppm 0-240 ppm 0-25 gpg 6.2-8.4 pH | 50 | 00000000 | 000000 |
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 | Numeric Increments | No. of Color Points | Wd. | Lg., ft. | Each | |
0-13.0 pH | 1 | 14 | 1/2" | 50 | 0000000 | 000000 |
1.0-6.0 pH | 1 | 6 | 1/4" | 15 | 0000000 | 0000 |
1.0-11.0 pH | 1 | 11 | 1/2" | 50 | 0000000 | 00000 |
3.0-5.5 pH | 0.5 | 6 | 1/2" | 50 | 0000000 | 00000 |
3.0-9.0 pH | 1 | 7 | 1/2" | 50 | 0000000 | 00000 |
6.0-8.0 pH | 0.4 | 7 | 1/2" | 50 | 0000000 | 00000 |
6.5-13.0 pH | 0.5 | 14 | 1/4" | 15 | 000000 | 0000 |
8.0-9.5 pH | 0.5 | 4 | 1/4" | 15 | 0000000 | 0000 |
10.0-12.0 pH | 0.5 | 5 | 1/4" | 15 | 0000000 | 0000 |
Colorimeters


Ensure consistent coloring on products such as labels and packaging. The sensor on these colorimeters translates the light an object reflects to an exact color reading. Use them for quality control to prevent slight variation that you might miss with your eyes alone. Calibrate your colorimeter using the included white calibration block. The machine measures all other colors according to their variance from true white.
Color calibration plates (sold separately) test and calibrate your colorimeter. They include five colors across the color spectrum to give the device a reference point for exact color readings. Precisely manufactured to ISO/IEC 17025, these plates meet standards for testing and calibration equipment.
Colorimeters | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Illumination | Color Calibration Plates | ||||||||||||||
Repeatability | Field of View | Ht. | Wd. | Dp. | Distribution | Angle | Color Space | Color Distance Formula | Batteries Included | Features | Includes | Each | Each | ||
LED with Visible Light Spectrum | |||||||||||||||
USB-C Connection | |||||||||||||||
ΔE*ab ≤ 0.03 | 10° | 6 1/2" | 2 1/2" | 3 1/2" | Diffuse | 8° | CIE Lab, CIE LCh, CIE Luv, CMYK, Hex, RGB, Yxy | ΔE*ab, ΔE*uv, ΔE*94, ΔE*cmc (2:1), ΔE*cmc (1:1), ΔE*00 | Yes | Storage for up to 1,000 Colors, Storage for up to 1,000 Comparisons | 3 ft. Long USB Cord, AC Adapter, Microfiber Cloth, White Calibration Block | 0000000 | 0000000 | 0000000 | 000000000 |
Color Calibration Plates for Colorimeters

Calibrate your colorimeter so it can identify colors with precision. The white block calibrates your colorimeter because the machine measures all other colors according to their variance from true white. The four colored blocks are particularly helpful in quality control applications, where you want to make sure a specific color is consistent unit-to-unit. Made of ceramic, these plates won’t degrade, warp, or discolor over time, ensuring reliable measurements. Their surfaces are smooth and easy to clean, so they resist scratches that could affect readings. These plates are precisely manufactured to ISO/IEC 17025 standards for testing and calibration equipment.
For technical drawings and 3-D models, click on a part number.
Plate | ||||||||
---|---|---|---|---|---|---|---|---|
For Field of View | Number of Plates | Wd., mm | Dp., mm | Color Space | Includes | Specifications Met | Each | |
2°, 10° | 5 | 50 | 50 | CIE Lab, RGB, Yxy | Five Plates (Blue, Green, Red, White, Yellow) One Pair Gloves (Size L) | ISO/IEC 17025 | 0000000 | 000000000 |