Quickly and accurately test your pool or spa water in seconds. AquaChek Yellow 4-in-1 test strips make routine water testing simple and reliable, helping maintain clean, balanced water and prevent common water problems.
What This Test Strip Measures
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Free Chlorine
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pH
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Total Alkalinity
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Stabilizer (Cyanuric Acid)
Clear color matching provides fast, easy-to-read results.
Ideal For
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In-ground pools
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Above-ground pools
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Spas and hot tubs
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Chlorine-sanitized water systems
(Not intended for bromine systems.)
How to Use
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Dip one strip into water for 1 second
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Remove and hold level for 15 seconds
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Compare colors to the chart on the bottle
No liquid reagents, mixing, or equipment required.
Why Choose AquaChek
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Fast results in seconds
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Simple weekly testing
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Helps maintain proper water balance
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Trusted brand used by pool owners and professionals
What’s Included
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1 bottle of AquaChek Yellow 4-in-1 Test Strips
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50 test strips per bottle