Water Test Strips | McMaster-Carr

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29 Products

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.

Single-Substance Test Strips

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

5-in-1 Test Strips

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