GE GXWH70M Smart
#7 in CartridgeFull review
A single filter for chlorine taste with a built in leak detector and shutoff. Worth it if the leak protection is what you want.
Amazon $194.65$194.65
The GE GXWH70M Smart is the better whole-house water filter overall, rated 3.0 to 2.0. The GE GXWH70M Smart leads on certification, running cost and price. The GE GXWH70M Smart costs $63.35 less ($194.65 vs $258).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Pentair Pentek FloPlus Protect 20BB
#20 in CartridgeFull review
For a smaller home where PFAS in the water is the main worry. Its low flow rating suits one or two bathrooms.
Amazon $258$258
Which should you buy?
- Choose the GE GXWH70M Smart for certification (certified to NSF/ANSI 42 vs no certification in a public listing, no tested to claim), running cost ($1.93 per 1,000 gallons ($28.98 every 15,000 gallons) vs $4.69 per 1,000 gallons ($187.46 every 40,000 gallons)) and price ($194.65 vs $258).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every cartridge whole-house water filter; a clear win is highlighted. How we rank explains each one.
| Factor weight | GE GXWH70M Smart | Pentair Pentek FloPlus Protect 20BB |
|---|---|---|
| Overall rating | 3.0/5 | 2.0/5 |
| Running cost 25% | 16 $1.93 per 1,000 gallons ($28.98 every 15,000 gallons) | 0 $4.69 per 1,000 gallons ($187.46 every 40,000 gallons) |
| Certification 25% | 60 certified to NSF/ANSI 42 | 0 no certification in a public listing, no tested to claim |
| Flow 15% | 50 flow not published (neutral score used) | 0 5 gpm service flow |
| Price 20% | 84 $194.65 | 68 $258 |
| Warranty 15% | 0 1-year warranty | 0 warranty not published, scored as none |
Specifications
| GE GXWH70M Smart | Pentair Pentek FloPlus Protect 20BB | |
|---|---|---|
| Filtration | ||
| Capacity | 15,000 gallons | 40,000 gallons |
| Replacement filters or media | $28.98 | $187.46 |
| Running cost | $1.93 per 1,000 gal | $4.69 per 1,000 gal |
| Stages | 1 | 1 |
| Certified | NSF/ANSI 42 | - |
| Chloramine | No | No |
| PFAS | No | Yes |
| Build | ||
| Flow | - | 5 gpm |
| Ports | 0.8 in | 1 in |
| UV stage | No | No |
| Warranty | 1 year | - |