Water hardness test kit
Water hardness test kit for sale on Ireland's largest auction and classifieds sites
Total water hardness test - water, - €3.95
Waiting confusion just • Dip compare read • Instant results into - Free postage - New and Used
Waiting confusion just • Dip compare read • Instant results into - Free postage - New and Used
Total water hardness - total, - €6.80
Simply dip compare • Large color chart • Bottle ideal range - Free postage - New and Used
Simply dip compare • Large color chart • Bottle ideal range - Free postage - New and Used
Water hardness test kit - water, - €10.44
Caltest inexpensive way • Getting instant reading • Your water hardness - Free postage - New and Used
Caltest inexpensive way • Getting instant reading • Your water hardness - Free postage - New and Used
Water hardness test kit - hardness, - €13.99
Caltest inexpensive way • Getting instant reading • Your water hardness - Free postage - New and Used
Caltest inexpensive way • Getting instant reading • Your water hardness - Free postage - New and Used
Looking for more water hardness test kit?
Search eBay live — fresh results filtered for the best value, updated every hour.
Api carbonate hardness - api, - €8.99
Keep your fish • Healthy thriving testing • Aquarium water levels - Free postage - New and Used
Keep your fish • Healthy thriving testing • Aquarium water levels - Free postage - New and Used
📊
48 listings · from €3.15 · avg €11.04
Browse 48 water hardness test kit listings currently in our index. Prices range from €3.15 to €34.99, with an average of €11.04. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about water hardness test kit →
Water hardness test kit easy - water, - €13.99
These kits are • Also useful monitor • Whether not your - Free postage - New and Used
These kits are • Also useful monitor • Whether not your - Free postage - New and Used
Premium water hardness test - water, - €9.95
Quick accurate results • Discover ease precision • Varify water hardness - Free postage - New and Used
Quick accurate results • Discover ease precision • Varify water hardness - Free postage - New and Used
Total water hardness test - total, - €3.99
Hardness greater than • 250ppm dishwasher impossible • Use without producing - Free postage - New and Used
Hardness greater than • 250ppm dishwasher impossible • Use without producing - Free postage - New and Used
Total water hardness - total, test - €5.99
Hardness greater than • 250ppm dishwasher impossible • Use without producing - Free postage - New and Used
Hardness greater than • 250ppm dishwasher impossible • Use without producing - Free postage - New and Used
Water testing strips - testing, - €3.99
Strip precisely impregnated • Chemistries needed test • Alkalinity total hardness - Free postage - New and Used
Strip precisely impregnated • Chemistries needed test • Alkalinity total hardness - Free postage - New and Used
Total water hardness test - total, - €12.99
Hardness greater than • 250ppm dishwasher impossible • Use without producing - Free postage - New and Used
Hardness greater than • 250ppm dishwasher impossible • Use without producing - Free postage - New and Used
Labs test kits - nt, - €9.49
Nitrate produced beneficial • Bacteria aquarium filters • They break down - Free postage - New and Used
Nitrate produced beneficial • Bacteria aquarium filters • They break down - Free postage - New and Used
Api liquid test - kh, - €11.49
Api liquid water • Test kit - Free postage - New and Used
Api liquid water • Test kit - Free postage - New and Used
Water test kit hardness - water, - €8.19
Water test kit • Convenient solution testing • Both hardness levels - Free postage - New and Used
Water test kit • Convenient solution testing • Both hardness levels - Free postage - New and Used
Api test kit carbonate - kh, - €13.49
- Free postage - New and Used
- Free postage - New and Used
Api water test - api, - €11.99
Api test kit • Accurate hardness testing • Freshwater aquariums tap - Free postage - New and Used
Api test kit • Accurate hardness testing • Freshwater aquariums tap - Free postage - New and Used
Water hardness test - hardness, for - €11.65
Whether you looking • Get water softener • Have had install - Free postage - New and Used
Whether you looking • Get water softener • Have had install - Free postage - New and Used
Api freshwaster and - and, saltwater - €8.99
Api understand rewards • Relaxation fishkeeping because • Have passion fish - Free postage - New and Used
Api understand rewards • Relaxation fishkeeping because • Have passion fish - Free postage - New and Used
50x 5in1 pool - 5in1, strips - €3.94
Total alkalinity stabilise • Forconsistent water chemistry • Chlorine ensureeffective sanitisation - Free postage - New and Used
Total alkalinity stabilise • Forconsistent water chemistry • Chlorine ensureeffective sanitisation - Free postage - New and Used
Water hardness test - water, - €13.99
- Free postage - New and Used
- Free postage - New and Used
50x 5in1 pool - 50x, spa - €3.90
Remove rest seconds • Compare pads strip • Comparison table - Free postage - New and Used
Remove rest seconds • Compare pads strip • Comparison table - Free postage - New and Used
Total hardness water test - total, - €7.90
Don know whether • Your water softener • Working correctly well - Free postage - New and Used
Don know whether • Your water softener • Working correctly well - Free postage - New and Used
Api test kit liquid - kh, - €8.49
Api liquid water • Test kit - Free postage - New and Used
Api liquid water • Test kit - Free postage - New and Used
Water hardness analysis test - water, - €11.19
Hardness water impacts • Availability dissolve soluable • Parts elixir that - Free postage - New and Used
Hardness water impacts • Availability dissolve soluable • Parts elixir that - Free postage - New and Used
Premium water hardness test - hardness, - €9.87
Support worldwide change • While monitoring your • Water hardness waterforgood - Free postage - New and Used
Support worldwide change • While monitoring your • Water hardness waterforgood - Free postage - New and Used
Api aquarium water - 1, - €6.45
Api test kits • Convenient easy testing • Use set simply - Free postage - New and Used
Api test kits • Convenient easy testing • Use set simply - Free postage - New and Used
Calmag water hardness - hardness, test - €13.50
This product calmag • Water hardness test • Towel rail radiators - Free postage - New and Used
This product calmag • Water hardness test • Towel rail radiators - Free postage - New and Used
Premium water hardness - hardness, test - €11.70
Waterproof color chart • You can confidently • Evaluate hardness levels - Free postage - New and Used
Waterproof color chart • You can confidently • Evaluate hardness levels - Free postage - New and Used
Labs aquarium test kits ph - aquarium, - €8.45
Ammonia nitrite nitrate • Main factor successful • Fish keeping lies - Free postage - New and Used
Ammonia nitrite nitrate • Main factor successful • Fish keeping lies - Free postage - New and Used
Varify water hardness - hardness, kit - €9.79
Make difference world • Water crisis support • Our mission waterforgood - Free postage - New and Used
Make difference world • Water crisis support • Our mission waterforgood - Free postage - New and Used
Varify water hardness test kit - water, - €11.13
Monitor your water • Quality easily varify • Hardness test kit - Free postage - New and Used
Monitor your water • Quality easily varify • Hardness test kit - Free postage - New and Used
Mains private drinking - or, - €17.70
Included are reagent • Solution colour change • Droplets specialized water - Free postage - New and Used
Included are reagent • Solution colour change • Droplets specialized water - Free postage - New and Used
Water hardness test - hardness, kit - €28.50
Test hardness your • Water buy • Kit - Free postage - New and Used
Test hardness your • Water buy • Kit - Free postage - New and Used
Varify water hardness test - water, kit - €9.45
Waterproof color chart • You can confidently • Evaluate hardness levels - Free postage - New and Used
Waterproof color chart • You can confidently • Evaluate hardness levels - Free postage - New and Used
Water hardness test kit - hardness, & - €27.60
Apply months keep • Resin clean efficient • Maintaining optimal softening - Free postage - New and Used
Apply months keep • Resin clean efficient • Maintaining optimal softening - Free postage - New and Used
Total water hardness - total, - €7.85
Check drinking water • Safety ensure your • Safe clean thiswater - Free postage - New and Used
Check drinking water • Safety ensure your • Safe clean thiswater - Free postage - New and Used
Salifert profi test kit - profi, range - €11.50
Test kit salifert • Ammonia nh3 nh4 • Profi - Free postage - New and Used
Test kit salifert • Ammonia nh3 nh4 • Profi - Free postage - New and Used
Pack 1 drinking water - 50-pack, - €9.93
Ensure your drinking • Water safe this • Test kit quickly - Free postage - New and Used
Ensure your drinking • Water safe this • Test kit quickly - Free postage - New and Used
Water hardness test kit - hardness, - €10.39
Quick accurate results • Discover ease precision • Varify water hardness - Free postage - New and Used
Quick accurate results • Discover ease precision • Varify water hardness - Free postage - New and Used
Api master test - api, kits - €34.99
High range 7.4 • 8.8 ammonia nh3 • Instructions glass test - Free postage - New and Used
High range 7.4 • 8.8 ammonia nh3 • Instructions glass test - Free postage - New and Used
Jbl proaquatest carbonate - jbl, - €8.19
Water test kit • Jbl proaquatest carbonate • Testing key healthy - Free postage - New and Used
Water test kit • Jbl proaquatest carbonate • Testing key healthy - Free postage - New and Used
Salifert carbonate hardness - carbonate, / - €11.50
Salifert alkalinity test • Kit maintaining proper • Essential health stability - Free postage - New and Used
Salifert alkalinity test • Kit maintaining proper • Essential health stability - Free postage - New and Used
Labs aquarium lab - test, kits - €10.99
Labs aquarium lab • Hardness test you • Need adjust your - Free postage - New and Used
Labs aquarium lab • Hardness test you • Need adjust your - Free postage - New and Used
Water hardness test kit 150 - hardness, - €21.36
Quick accurate results • Discover ease precision • Varify water hardness - Free postage - New and Used
Quick accurate results • Discover ease precision • Varify water hardness - Free postage - New and Used
Water hardness tablets 10no - water, - €3.15
Your water • These tablets will • Softener working correctly - Free postage - New and Used
Your water • These tablets will • Softener working correctly - Free postage - New and Used
Drinking water quality test - drinking, - €9.77
Test range 425 • Ppm dip strip • Into water compare - Free postage - New and Used
Test range 425 • Ppm dip strip • Into water compare - Free postage - New and Used
Aquarium test kit holder rack - test, - €11.99
Api freshwater master • Test kit gold • Standard checking water - Free postage - New and Used
Api freshwater master • Test kit gold • Standard checking water - Free postage - New and Used
Harris water hardness test - harris, - €4.49
Test strips are • Pool hot tub • Water hardness - Free postage - New and Used
Test strips are • Pool hot tub • Water hardness - Free postage - New and Used
Try this: sturgeon pellets | tancho koi | aqua oak aquarium | wave maker | coffee table fish tank | uv sterilizer nail | eheim external filter | cichlids | fish tank cabinet | marine aquarium led lighting
Shop by budget
Everything you need to know about water hardness test kit
Whether you are looking for a brand-new or second-hand water hardness test kit, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at €3.15, while premium listings can reach €34.99 — giving you a wide budget spread to work with. The average price of €11.04 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.