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💧 Don’t just guess your water quality—test it like a pro!
The JNW Direct Water Hardness Test Strips kit offers 150 fast, easy-to-use strips that deliver accurate water hardness and pH readings across a 0-14 scale. Perfect for monitoring home water softeners, aquariums, pools, and more, this kit ensures you maintain optimal water conditions with instant, clear color-coded results.
| ASIN | B07B31M49N |
| Best Sellers Rank | 143,652 in Pet Supplies ( See Top 100 in Pet Supplies ) 310 in Aquarium Test Kits |
| Brand | JNW Direct |
| Customer Reviews | 4.3 out of 5 stars 5,362 Reviews |
| Included Components | Test Strips |
| Item Weight | 32 g |
| Manufacturer | JNW Direct |
| Manufacturer Part Number | Stargazer Set |
| Material Type | ABS_(Acrylonitrile_Butadiene_Styrene), PE_(Polyethylene), PS_(Polystyrene) |
| Model Number | Water Hardness |
| Number of items | 1 |
| Recommended Uses For Product | Aquarium, Water Hardness Test |
| Recommended uses for product | Aquarium, Water Hardness Test |
| Sterility Rating | 0-14 |
| Unit Count | 150.0 count |
| Unit count | 150.0 count |
| pH range | 0-14 |
M**N
Well packaged easy to use
Very good product, simple to use and good value.
J**N
Easy to use test strips
Worked well, just what I needed to test the effectiveness of my water softener.
L**Z
Accurate, Fast, and Easy to Use — Great Value!
These test strips work perfectly and give quick, clear results. I used them to check the hardness of my tap water and my softener system — both readings were accurate and easy to interpret thanks to the color chart. The included eBook is a nice touch, explaining water hardness and maintenance tips in simple terms. With 150 strips, it’s an excellent value for ongoing testing.
A**E
Good Product
It's very good product but lead time is more. Please reduce delivery times
M**N
👍
Works great.
B**2
Quick and easy to use, but check within 30 seconds!
I had a whole-home HALO5 filtration system installed recently and felt like our water was much harder than when we only had a water softener. Bought a box of these to check for hardness. Easy to use and the hardness registers almost immediately. IF YOU HAVE HARD WATER, you need to check them within 30 seconds or so, otherwise the color of the test changes (see picture). When the filtration guy came out to check the HALO5 system, he read the strip immediately, and after a few minutes and said it wasn't that hard. I asked him to use another strip and that they were supposed to be read within 30 seconds. Within just a few minutes, it starts showing the original color of the test strip (which is green for soft). You can still see some of the rust color, but the green definitely shows through. I tried this with distilled (soft) water and the test color showed very soft. After an hour it was the same color just a bit lighter. BE SURE TO READ THE STRIP WITHIN 30 SECONDS FOR ACCURACY!
Trustpilot
3 weeks ago
1 month ago