Express Water WH300SCKS 3-stage heavy-metal whole-house vs iSpring WGB21B-PF PFAS whole-house
The Express Water WH300SCKS 3-stage heavy-metal whole-house and iSpring WGB21B-PF PFAS whole-house are certified for the same contaminants we track. Replacement filters and water for 2 people cost about $187 a year on the Express Water WH300SCKS 3-stage heavy-metal whole-house and $280 on the iSpring WGB21B-PF PFAS whole-house; they cost $548 and $326 to buy.
| Express Water WH300SCKS 3-stage heavy-metal whole-house | iSpring WGB21B-PF PFAS whole-house | |
|---|---|---|
| Type | Whole-house | Whole-house |
| Price | $548 | $326 |
| Filters + water a year (2 people) | $187 | $280 |
| Filter cost per gallon (rated life) | 0.2¢ | 0.3¢ |
| Gallons per day | — | — |
| Pure to drain | — | — |
| Installation | plumber | plumber |
| PFAS | — | Brand test only |
| Lead | Brand test only | — |
| Chlorine | Brand test only | Brand test only |
| Chloramine | Brand test only | — |
| VOCs | — | Brand test only |
| Iron | Brand test only | — |