Alexapure Pro gravity filter (Gen 2) vs Ninja HydraSense
Only the Ninja HydraSense is certified to reduce PFAS, lead, chlorine and chloramine and 3 more. Verdict: the Ninja HydraSense for broader certified protection (7 vs 0 of the contaminants we track). Replacement filters and water for 2 people cost about $133 a year on the Alexapure Pro gravity filter (Gen 2) and $80 on the Ninja HydraSense; they cost $280 and $250 to buy.
| Alexapure Pro gravity filter (Gen 2) | Ninja HydraSense | |
|---|---|---|
| Type | Countertop filter | Countertop filter |
| Price | $280 | $250 |
| Filters + water a year (2 people) | $133 | $80 |
| Filter cost per gallon (rated life) | 65¢ | 33¢ |
| Gallons per day | — | — |
| Pure to drain | — | — |
| Installation | none | none |
| PFAS | Brand test only | Certified |
| Lead | Brand test only | Certified |
| Chlorine | Brand test only | Certified |
| Chloramine | Brand test only | Certified |
| Fluoride | Brand test only | — |
| Arsenic | Brand test only | — |
| Mercury | Brand test only | Certified |
| Microplastics | Brand test only | Certified |
| Cysts | Brand test only | — |
| VOCs | Brand test only | Certified |
| Bacteria and viruses | Brand test only | — |
| Uranium | Brand test only | — |