iSpring WF150K
#3 in TankFull review
A backwashing carbon tank for owners who want a long life system with a long warranty and have a drain nearby.
Amazon $1,673.70$1,673.70
The iSpring WF150K is the better whole-house water filter overall, rated 3.3 to 3.2. The iSpring WF150K leads on price. The iSpring WF150K costs $573.29 less ($1,673.70 vs $2,246.99).
Aquasana Rhino Max Flow with UV
#4 in TankFull review
For a large house that needs high flow and wants UV added. Most city homes can skip the UV and pay less.
Amazon $2,246.99$2,246.99
Prices were last checked November 2, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the iSpring WF150K for price ($1,673.70 vs $2,246.99).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every tank whole-house water filter; a clear win is highlighted. How we rank explains each one.
| Factor weight | iSpring WF150K | Aquasana Rhino Max Flow with UV |
|---|---|---|
| Overall rating | 3.3/5 | 3.2/5 |
| Running cost 25% | 50 filter cost or capacity not published (neutral score used) | 31 $1.30 per 1,000 gallons ($1,299 every 1,000,000 gallons) |
| Certification 25% | 30 tested to NSF/ANSI 42, 53, not certified | 30 tested to NSF/ANSI 42, not certified |
| Flow 15% | 50 flow not published (neutral score used) | 90 14 gpm service flow |
| Price 20% | 40 $1,673.70 | 20 $2,246.99 |
| Warranty 15% | 100 10-year warranty | 100 10-year warranty |
Specifications
| iSpring WF150K | Aquasana Rhino Max Flow with UV | |
|---|---|---|
| Filtration | ||
| Capacity | - | 1,000,000 gallons |
| Replacement filters or media | $1,673.70 | $1,299 |
| Running cost | - | $1.30 per 1,000 gal |
| Stages | 1 | - |
| Tested to (not certified) | NSF/ANSI 42, 53 | NSF/ANSI 42 |
| Chloramine | No | No |
| PFAS | No | No |
| Build | ||
| Flow | - | 14 gpm |
| Ports | 1 in | - |
| Backwashing | Yes | No |
| UV stage | No | Yes |
| Warranty | 10 years | 10 years |