$9.97
on Amazon
Where we mention this product
-
problems
Scale on Faucets and Fixtures: Remove It, Then Fix the Cause
Borderline gpg · Best for: Double-pad design narrows the read between 1 and 5 gpg — useful if your water is on the moderately-hard / hard border.
-
problems
Water Softener Not Using Salt: Causes and Fixes
High volume · Best for: Tighten the gpg reading after a fix to catch the difference between 1 and 5 gpg.
More Test kits
See all test kits
VARIFY Water Hardness Test Kit (0-425 ppm, 150 Strips)
$9.99
In 12 guides
JNW Direct Water Hardness Test Strips - 150 Strips Kit
$9.99
In 6 guides
HoneForest TDS Meter, Digital Water Tester (TDS, EC, Temperature)
$13.97
In 3 guides
Instant 4-in-1 TDS Meter Digital Water Tester 0–9990 PPM, EC+Temp
$9.96
In 3 guides