230
people found this helpful, as of 2023
ranked #130,461 most helpful
out of 571,544,897 reviews
★★★★★
Very accurate
Very accurate.
Use to confirm my “muti strip” reading for the pool when I think the other product is off.
This one correlates with the pool store every time
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