JNW Direct Water Hardness Test Kit (150 Strips), Hard Water Test Kit, Best Water Hardness Test Strips for Accurate Water Quality Testing to Determine Soft or Hard Water, Free App & Ebook Included industrial Includes instructions and 2 x industrial_DE_Aug2026
USD118.00
USD157.00
Pay in 4 interest-free payments of $29.50 Learn more
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USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Nov 15 - Nov 20