229
people found this helpful, as of 2023
ranked #131,382 most helpful
out of 571,544,897 reviews
★★★★★
Accurate and packaged well.
I found these to be accurate when compared to the tests taken by water softener installation companies that have provided me with recent quotes. Also I like that the extras arrive in sealed pouches.
the product in question
Water Hardness Test Strips | Fast and Accurate Water Quality Testing Kit for Water Softener, Swimming Pool, Fish Tank, Spa Kit and etc |150 Strips for 150 Hard Water Tests. 0-425 ppm and 0-25 gpg
4.3★ · 666 ratings, as of 2023