Waterdrop WHF3T-PG
#3 in CartridgeFull review
A lower priced three stage big blue system for city water. Running cost is hard to judge without a gallon rating.
Amazon $254.99$254.99
The Waterdrop WHF3T-PG is the better whole-house water filter overall, rated 3.2 to 2.4. The Waterdrop WHF3T-PG leads on price and certification. The Waterdrop WHF3T-PG costs $245 less ($254.99 vs $499.99).
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.
Express Water Heavy Metal WH300SCKS
#17 in CartridgeFull review
A frame mounted three stage system for city water where lead from old pipes is the worry. Its heavy metal claims aren’t certified.
Amazon $499.99$499.99
Which should you buy?
- Choose the Waterdrop WHF3T-PG for price ($254.99 vs $499.99) and certification (tested to NSF/ANSI 42, not certified vs no certification in a public listing, no tested to claim).
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 | Waterdrop WHF3T-PG | Express Water Heavy Metal WH300SCKS |
|---|---|---|
| Overall rating | 3.2/5 | 2.4/5 |
| Running cost 25% | 50 filter cost or capacity not published (neutral score used) | 15 $1.99 per 1,000 gallons ($198.88 every 100,000 gallons) |
| Certification 25% | 30 tested to NSF/ANSI 42, not certified | 0 no certification in a public listing, no tested to claim |
| Flow 15% | 100 15 gpm service flow | 100 15 gpm service flow |
| Price 20% | 68 $254.99 | 28 $499.99 |
| Warranty 15% | 0 1-year warranty | 0 1-year warranty |
Specifications
| Waterdrop WHF3T-PG | Express Water Heavy Metal WH300SCKS | |
|---|---|---|
| Filtration | ||
| Capacity | 100,000 gallons | 100,000 gallons |
| Replacement filters or media | - | $198.88 |
| Running cost | - | $1.99 per 1,000 gal |
| Stages | 3 | 3 |
| Tested to (not certified) | NSF/ANSI 42 | - |
| Chloramine | No | No |
| PFAS | No | No |
| Build | ||
| Flow | 15 gpm | 15 gpm |
| Ports | 1 in | 1 in |
| UV stage | No | No |
| Warranty | 1 year | 1 year |