100 bottles with 10 test strips per $1.99 bottle!
Insta-Test 4 is great for both pools and spas as it shows 4 key measurements with just one test:
The Insta-TEST 4 Pool & Spa Test Strip is a dip-n-read strip with instant results. Each bottle includes 10 test strips packaged in a waterproof PopTop bottle with a hinged cap. The bottle has a molded desiccant liner, which protects the strips from moisture and UV light. The Insta-TEST 4 strip is ideal for spa owners who need the most critical tests for perfect water balance.
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