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Water Testing

Water Testing, TDS Meters and Test Supplies. Check your water quality. Check total dissolved solids in RO systems to see if it is time to change the RO membrane.
  1. 8 in 1 Home Water Test Kit - Very Simple To Use - Quick Results
    8 in 1 Home Water Test Kit - Very Simple To Use - Quick Results
    8 in 1 Home Water Test Kit - Very Simple To Use - Quick Results. Kit includes 2 complete tests for each of the following: Iron, Hardness, Copper, Nitrates, Nitrites, Chlorine, pH and Alkalinity. Learn More
    $22.99 Special Price $14.99 As low as $9.99
  2. ITS-5in1-50- 1000
    ITS 5 in1 Water Test Kit - 5 Way Water Testing
    5-Way Water Check reports results for Free Chlorine, Total Chlorine, pH, Total Alkalinity & Total Hardness. ITS # 480015 UPC #809762800152 Learn More
    $19.99
  3. ITS-pH-Alkalinity-50-1000
    pH Alkalinity Water Tests - Easy to Use In-Home - 50 Tests in One Bottle
    pH & Total Alkalinity test strips are designed for both measurements. Gives reproducible results for each test separately. ITS # 480005 UPC #809762800053 Learn More
    $19.99
  4. 3M  6-in-1 Water Test Kit -Simple to Use - DIY In Home Water Quality Test Kit
    3M 6-in-1 Water Test Kit -Simple to Use - DIY In Home Water Quality Test Kit
    6 in 1 Home Water Test Kit by 3M. Use this 3M DIY water quality test for convenient on-site testing. The 3M DIY water quality test kit provides quick analysis. Learn More
    $15.75 Special Price $12.99
  5. ITS-Chlorine-30- 1000
    Chlorine Water Testing Kit - 30 Individual Tests per Bottle
    Free & Total Chlorine test strips are perfect for determining whether or not you have the correct amount of sanitizer present. ITS #480655 UPC # 809762806550 Learn More
    $27.99 Special Price $19.99
  6. ITS-Copper-25-1000
    Copper Water Test Kit - 25 Tests per Bottle
    John's Copper water test is an alternative to wet chemical copper tests. Quick results are obtained in less than 1 minute ITS # 480042 UPC #809762800428 Learn More
    $27.99 Special Price $19.99
  7. ITS-Hardness-50-1000
    Water Hardness Test Kit - 50 Individual Water Tests
    Total Hardness test strips offer a wide range of detection and calibrated to be both accurate and sensitive. ITS # 480008 UPC #809762800084 Learn More
    $19.99
  8. ITS-Iron-25-1000
    Iron Test Water Testing Kit - Easy to Use In-Home - 25 Individual Test Strips
    Ida's Iron Check is designed to specifically react with iron, without interference from other heavy metals that may be present. ITS # 481046 UPC #809762810465 Learn More
    $27.99 Special Price $19.99
  9. PH Water Tests - Bottle Of 50 Individual Home Tests - Quick Results
    PH Water Tests - Bottle Of 50 Individual Home Tests - Quick Results
    PH Water Tests - Bottle Of 50 Individual Home Tests - Quick Results. Use with ease in your own home. Find out what level of water quality is coming into your house. Very simple use and very fast results. Learn More
    $22.99 Special Price $15.99 As low as $12.99
  10. Hardness Water Tests - Bottle Of 50 Individual Home Tests - Quick Results
    Hardness Water Tests - Bottle Of 50 Individual Home Tests - Quick Results
    Hardness Water Tests - Bottle Of 50 Individual Home Tests - Quick Results. Use with ease in your own home. Test for hadr water. Find out what level of hardness is coming into your house. Monitor water softener performance. Be sure your settings are correct for premium soft water. Very simple use and very fast results. Learn More
    $22.99 Special Price $15.99 As low as $12.99
  11. Iron Water Test Strips With Test Tablets (20 tests) - Quick Results
    Iron Water Test Strips With Test Tablets (20 tests) - Quick Results
    Iron Water Test Strips With Test Tablets (20 tests) - Quick Results. Use with ease in your own home. Test for iron in your water. Find out what level of water quality is coming into your house. Very simple use and very fast results. Learn More
    $22.99 Special Price $9.99
  12. Nitrate & Nitrite Water Tests - Bottle Of 50 Individual Home Tests - Quick Results
    Nitrate & Nitrite Water Tests - Bottle Of 50 Individual Home Tests - Quick Results
    Nitrate & Nitrite Water Tests - Bottle Of 50 Individual Home Tests - Quick Results. Use with ease in your own home. Test for pesticides and more. Find out what level of water quality is coming into your house. Very simple use and very fast results. Learn More
    $22.99 Special Price $15.99 As low as $12.99
  13. Pesticide Water Tests - Quick Results
    Pesticide Water Tests - Quick Results
    Pesticide Water Tests - Individual Home Pesticide Water Tests - Use with ease in your own home. Test for Pesticide in Your Water. Find out what level of water quality is coming into your house. Very simple use and very fast results. Learn More
    $27.99 Special Price $19.99 As low as $15.99
  14. Pool and Spa Bacteria Water Tests - Quick Results
    Pool and Spa Bacteria Water Tests - Quick Results
    Pool and Spa Bacteria Water Tests - Individual Home Pool and Spa Bacteria Water Tests - Use with ease in your own home. Test for Pool and Spa Bacteria in Your Water. Find out what level of water quality is in your pool or spa. Very simple use and very fast results. Pool and Spa Bacteria Water Test - Fast & Easy - 2 Pool And Spa Bacteria Tests Per Package. Easy to use. Do it yourself. Results in 20 minutes. Test for harmful bacteria for safety now. Learn More
    $22.99 Special Price $15.99 As low as $12.99
  15. Water Test - School Student Project Kit Tests - Quick Results
    Water Test - School Student Project Kit Tests - Quick Results

    Water Test - School Project Kit Water Tests - Individual Water Test - School Project Kit Water Tests - Very simple use and very fast results. Fast & Easy - Easy to use. Do it yourself in the class room. 8 different tests allow students to analyze 5 separate water supplies. Ease and accuracy prompts parents, students and educators to explore water quality in science classes and school fairs. Tests include Nitrates/Nitrites, pH/Alkalinity/Hardness, Chlorine, Copper, Iron. Great class project. Order 1 test kit per 5 students.

    Learn More
    $34.99 Special Price $24.99 As low as $19.99
  16. HM Digital PH-80 PH Water Testing Meter
    HM Digital PH-80 PH Water Testing Meter

    The PH-80 is an economically priced, reliable pH meter that is ideal for testing applications such as hydroponics & gardening, pools & spas, aquariums & reef tanks, water ionizers, drinking water and more.

     

    FEATURES

    • Measures pH and Temperature
    • One-touch automatic digital calibration
    • Water resistant
    • Simultaneous temperature display
    • Sleek, lightweight design
    • Large LCD display
    • Automatic Temperature Compensation (ATC)
    • Auto-off function, data-hold function and low-battery indicator
    • Includes storage solution in a sponge embedded in a translucent cap
    • Factory Calibrated.  The PH-80 meter is factory calibration to pH 7.0. The meter can easily and quickly be recalibrated with digital calibration to pH 4.0, 7.0 or 10.0 using the meter's simple one-touch process.
    • Includes a cap, batteries, storage solution and pH 7.0 buffer
    Learn More
    $79.99 Special Price $49.99
  17. Precipitator 2 - Digital PR-2 Water Tester- Compact Model -2000
    Precipitator 2 Digital PR-2 Water Tester - Compact Model
    Precipitator 2 Digital PR-2 ® - Compact Model Easy to Use - Use the Precipitator 2 as an effective visual demonstration for displaying the differences between a customer's tap water and purified water. Tap water will turn a blackish-green within seconds and look undrinkable. FEATURES A smaller, scaled-down version of the Precipitator 1, both effective sales tools for water filtration professionals. Electrode rods display the degree of TDS present in the water sample through an electro-chemical reaction. Encased in highly durable impact-resistant plastic. Removable electrode rods make the unit very easy to carry and manage. Compact, flat pocket-size design. SPECIFICATIONS Max. operating TDS: 500 ppm Power source: AC 110V / AC 220V Adaptor plug for 220V not included. Dimensions: 10.2 x 9.9 x 2.4 cm (4 x 3.9 x 1 in.) Unit Weight: 178.6 g (6.3 oz.) Total Weight: 207 g (7.3 oz.) Be sure to order extra rods and fuses. Don't let a demonstration go bad because you needed the service kit. Optional service kit includes 4 iron rods, 2 aluminum rods and 2 fuses. Learn More
    $39.99 Special Price $24.49 As low as $12.99
  18. Precipitator 1- Digital PR-1 Water Tester- With Case - 1000
    Precipitator 1 Digital PR-1 Water Tester - With Case
    Precipitator 1 Digital PR-1 ® - With Case - Easy to Use - Use the Precipitator as an effective visual demonstration for displaying the differences between a customer's tap water and purified water. Tap water will turn a blackish-green within seconds and look undrinkable. FEATURES: The Precipitator 1 is an effective sales tool that visually demonstrates the difference between high TDS water and low TDS water after using it to perform a test on the water sample. Electrode rods display the degree of TDS present in the water sample through an electro-chemical reaction. Easy to set the testing time with an operating timer. Operating status lights display usage for both the tap water and the purified water. Encased in highly durable impact-resistant plastic. Folding electrode rods make the unit very easy to carry and manage. Comes in a convenient vinyl carrying case. SPECIFICATIONS Max. operating TDS: 500 PPM Timer range: 0 - 15 minutes Power source: AC 110V & AC 220V with adaptor plug included. Dimensions: 12.5 x 6 x 5.5 cm (5 x 2.3 x 2 in.) Unit Weight: 442.3 g (15.6 oz) Total Weight: 601 g (1 lb 5.2 oz) Be sure to order extra rods and fuses. Don't let a demonstration go bad because you needed the service kit. Optional service kit includes 4 iron rods, 2 aluminum rods and 2 fuses. Learn More
    $59.99 Special Price $39.99 As low as $19.99
  19. Hanna ® HI70300M Storage Solution For pH & Orp Electrodes For Water Testing
    Hanna ® HI70300M Storage Solution For pH & Orp Electrodes For Water Testing
    Hanna ® HI70300M Storage Solution For pH & Orp Electrodes. 230 ml bottle. Hanna storage solutions are prepared with high grade Potassium Chloride and Potassium Hydrogen Phthalate by titration with NIST 2201 standardized Silver Nitrate and NIST 84j standardized Sodium Hydroxide Solution, respectively. Learn More
    $24.99 Special Price $13.99 As low as $11.99
  20. HM Digital PH-200 Waterproof Ph Water Testing Meter With Temperature
    HM Digital PH-200 Waterproof Ph Water Testing Meter With Temperature
    Incredibly accurate! A pH tester that is perfect for both consumer or commercial use. Ideal for all pH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee, agriculture and more. Measures pH and Temperature. Auto-ranging three point calibration with digital fine tuning Includes 4 pH buffer solution in a sponge embedded in a clear cap, so you can see if it's dried up. Waterproof housing. Simultaneous temperature display. Measurement Range: 0-14 pH. Digital Calibration (push button). Auto-off function, data-hold function and low-battery indicator. Display: large and easy-to-read LCD screen includes simultaneous temperature reading. Factory Calibrated: The PH-200 meter is three-point factory calibrated to 4, 7, and 10 pH. The meter can be recalibrated with digital calibration using the push buttons, rather than a screwdriver. Includes a cap, batteries, and lanyard. pH Range: 0 - 14 Temperature Range: 0-80 °C; 32-176 °F Resolution: 0.01 pH; Temperature resolution is 0.1 °C/F Accuracy: +/- .02% Calibration: Digital calibration by push button. Electrode: Replaceable glass sensor and reference tube electrodes Housing: Waterproof (submersible; floats) Power source: 3 x 1.5V button cell batteries (included) Dimensions: 18.5 x 3.4 x 3.4 cm (7.3 x 1.3 x 1.3 inches) Weight without case: 96.4 g (3.4 oz) Learn More
    $119.99 Special Price $84.99 As low as $69.99
  21. Precipitator 2 Repair Kit - 1000
    Precipitator Replacement Rod and Fuse Kit For PR-2
    PR-2-KIT Precipitator 2 Repair Kit - Includes 4 replacement iron rods, two aluminum rods and two fuses. If you have the old style PR-2 Precipitator with the WaterFiltersOnline.com Logo and the switch in the center order the first rod and fuse kit. If you have the new style PR-2 Precipitator without the WaterFiltersOnline.com Logo and the switch on the side order the second rod and fuse kit. Learn More
    $29.99 Special Price $19.99 As low as $11.99
  22. Precipitator Replacement Rods & Fuses Repair Kit for Water Testing- 1000
    Precipitator Replacement Rods PR-1 and Fuses Repair Kit For Water Testing
    Precipitator Replacement Rods and Fuses Repair Kit includes 4 iron rods, 2 aluminum rods and 2 fuses. Don't let a demo fail because you didn't have the repair parts on hand. Be sure to order at least one kit with your new Precipitator. Also fits the old HM Digital PR-1 precipitators. Learn More
    $29.99 Special Price $19.99 As low as $9.99