Category
Test kits
33 products — ordered by how often we mention them.
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Varify Water Hardness Test Kit - Water Testing Kit for Home, Drinking, Well, Spa
Confirm hardness in gpg before you blame the brine tank or buy more salt · Default pick for first-time testers sizing a softener — 150 strips, 0–425 ppm range, under $10
$9.98
in 20 guides
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JNW Direct Water Hardness Test Strips for Home Water - 150 Strips Kit
Same specs as VARIFY (150 strips, 0–425 ppm) if you want a second brand or the first is out of stock · Get your gpg number before any salt decision — premium-salt debates are noise below ~7 gpg
$8.99
in 12 guides
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WeAQUA DoubleCheck Water Hardness Test Kit — 200 Strips with Sampler Cup
Hardness + iron in one · Test soft-water output after each regen cycle to confirm the cycle actually restored capacity
$9.97
in 5 guides
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4-in-1 TDS Meter Digital Water Tester - TDS EC pH Temp
Cheap meter to catch TDS creep before taste changes — replace based on data, not calendar. · ppm to gpg conversion
$8.99
in 4 guides
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Hach Total Hardness Test Kit, Model 5-EP, Drop Count Titration
Higher-range Hach drop kit for very hard water (20+ gpg) where the Model 5-B runs out of drops too quickly · ±0.5 gpg precision
$58.09
in 4 guides
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HM Digital TDS-3 Handheld TDS Meter With Carrying Case, 0 - 9990 ppm TDS Measurement Range, 1 ppm Resolution, +/- 2% Readout Accuracy
Post-softener verification — measures TDS to confirm ion exchange is working. NOT for initial hardness measurement · Comparing one glass of softened water with one glass of RO water. It confirms a system is rejecting — it does not measure sodium
$14.50
in 4 guides
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VARIFY Instant 4-in-1 TDS Meter Digital Water Tester, 0-9990 PPM
30-second test of softener effectiveness — read TDS before and after the unit · Handheld TDS / EC / temp meter to verify your RO membrane is reducing dissolved solids within spec
$9.96
in 4 guides
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WeAQUA Water Hardness Test Kit - DoubleCheck 50 Strips
Cheapest option at $5.97 — dual-pad design lets you verify each reading; 50 strips, fine for a one-time test · Calcium and magnesium strips after one manual regeneration — confirms the softener recovered
$5.97
in 4 guides
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HoneForest TDS Meter, Digital Water Tester (TDS, EC, Temperature)
Alternative TDS meter that also measures conductivity and temperature — same softener-verification role as HM Digital · More accurate TDS reading for tight replacement timing on multi-stage RO.
$13.97
in 3 guides
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Bestprod All-New 21-in-1 Drinking Water Testing Kit Strips, Home Tap and Well Water Test Kit
Confirms pH, hardness, alkalinity, iron, copper, lead, and chloride in one strip · One-pass baseline on a private well — iron, hardness, pH, more
See Amazon
in 2 guides
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Water Hardness Test Kit with 5-Pads (150 strips)
A 150-count hardness kit if the 50-strip pack will be used up checking recovery over several cycles · First kit in the drawer — test cold tap before and after a manual regen
$8.99
in 2 guides
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Apera Instruments AI316 PC60 Premium 5-in-1 pH/EC/TDS Tester
Well owners who need pH, EC, and TDS together
See Amazon
in 1 guide
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AquaChek TDS Test Strips (25-pack)
Quick TDS range check when a meter isn't handy
See Amazon
in 1 guide
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Bartovation Total Dissolved Iron Test Strips, 0-10 ppm, 25-Pack
Confirm iron ppm before you buy any treatment system
See Amazon
in 1 guide
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Digital pH Meter Tester Pen, 0.01 Accuracy, 0-14 pH Range, Pre-Calibrated
Get a 0.01-resolution pH reading at the tap in 30 seconds; needs buffer-solution calibration every few weeks.
See Amazon
in 1 guide
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EHM Alkaline pH Test Kit for Drinking Water (Drop Titration)
Drop-count titration gives a tighter alkalinity reading than strips when strip colors are ambiguous.
See Amazon
in 1 guide
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Hach Total Hardness Test Kit, Model 5-B, Drop Count Titration
Industry-standard drop-count titration — ±0.5 gpg accuracy for borderline cases and professional use
$35.55
in 1 guide
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Hach Total Hardness Test Kit, Model 5-EP, Drop Count EDTA, 145401
Drop-count titration gives exact mg/L reading for system sizing
See Amazon
in 1 guide
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HEVEIS 21-in-1 Home Drinking Water Testing Kit (120 strips + 4 bacteria tests)
When signs could be hardness, iron, pH, or chlorine — triage 21 parameters in one pass before paying for a lab test.
$28.99
in 1 guide
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HYCHEK 21 in 1 Accurate Drinking Water Test Kit, Well Water Testing Kit
Manganese, iron, hardness, pH and sediment come off the same well. One kit sizes the whole plan instead of one strip brand at a time.
$21.99
in 1 guide
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Industrial Test Systems 481012 SenSafe Manganese Water Test Strip Kit, 12 Tests
Rule manganese in or out when stains are black or brown, not orange
See Amazon
in 1 guide
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Industrial Test Systems 481020 SenSafe Manganese Test
A second manganese-specific strip from a different product line, useful for confirming one borderline reading before you size a system.
$30.47
in 1 guide
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Industrial Test Systems eXact 486606 Micro Manganese Reagent Strips, 0.03-1.5 ppm Detection Range (Bottle of 24)
Its 0.03-1.5 ppm reading window brackets the 0.05 mg/L aesthetic limit exactly, so the number you read is the number you act on.
$22.50
in 1 guide
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Industrial Test Systems WaterWorks 481108 Total Hardness Test Strip, 3 Second Test, 0-1000ppm Range, Bottle of 50 Tests
Reading a real gpg number instead of guessing from soap scum — the 0-1000 ppm range covers hard and very hard city water on one strip
$16.99
in 1 guide
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Safe Home 14-in-1 DIY Ultimate Drinking Water Test Kit
First-pass well panel covering lead, bacteria, hardness, pH, and nitrates before you buy any stage
$29.99
in 1 guide
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Safe Home DIY Bacteria in Water Test Kit
Dedicated coliform screen when the general kit flags bacteria or you need a faster yes/no before UV
$14.99
in 1 guide
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SJ WAVE 22 in 1 Water Test Kits - 125 Strips Drinking Water Test Kit
Baseline multi-parameter check on well or city tap before buying treatment
$21.99
in 1 guide
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Total Water Hardness Test for Pool, Aquarium, and Drinking Water
Confirm exact gpg before changing hardness settings
$34.99
in 1 guide
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Varify 17-in-1 Complete Drinking Water Test Kit, 100 Strips
Checking hardness and other screening parameters before deciding between a softener, RO, or lab test
$26.97
in 1 guide
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Varify 7-in-1 Pool Test Strips (150 Strips) — pH, Alkalinity, Hardness, Chlorine, Bromine, CYA
One dip-and-read strip covers pH + alkalinity + hardness + chlorine in 15 seconds — best one-shot baseline.
See Amazon
in 1 guide
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VIVOSUN Digital pH Meter TDS EC Meter for Water
Comparing conductivity-based TDS readings before and after an RO system, not a substitute for a hardness test
$15.19
in 1 guide
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WANJAO 10ML Hard Water Test Kit, Rapid Quality Testing
Drops under $12 — for one-off pre-purchase check
$11.99
in 1 guide
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Water Hardness Test Kit, 150 Strips — Double Color Pads with Sample Tube
Quickest way to get your gpg before shopping for a softener
See Amazon
in 1 guide