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💧 Dive into crystal-clear confidence with every test!
Phenol Red Rapid Dissolve Tablets provide fast, accurate pH testing for pools, spas, and hot tubs within a 6.8–8.4 range. Each pre-measured tablet dissolves quickly to deliver reliable color changes compatible with standard comparators. Packaged in hygienic foil cups, these 250-count tablets ensure safe, precise water quality monitoring to optimize chlorine effectiveness and protect your aquatic environment.











| Asin | B0C6MWYDHS |
| Best Sellers Rank | 21,540 in Garden (See Top 100 in Garden) 78 in Pool & Hot Tub Testers |
| Brand | TEST ALL WATER |
| Country Of Origin | Germany |
| Customer Reviews | 4.8 4.8 out of 5 stars (8) 4.8 out of 5 stars |
| Manufacturer | Test All Water |
| Manufacturer Part Number | 511791BT |
| Material Type | Phenol Red |
| Model Number | 511791BT |
| Recommended Uses For Product | pH, Swimming Pool Water, Spa Water, Industrial Water |
| Sterility Rating | 6.8-8.4 |
| Unit Count | 250.0 count |
User
hot tub loves em.
they work
User
Very good
Easy to use
Trustpilot
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