LiquaGen FK-CAT 10x54
#5 in TankFull review
A cheaper backwashing catalytic carbon tank for a large city home with chloramine. Its claims are not backed by testing or a warranty term.
Amazon $849.99$849.99
The LiquaGen FK-CAT 10x54 and the iSpring WF1054 are evenly matched, rated 2.9 and 2.8. The LiquaGen FK-CAT 10x54 leads on price. The iSpring WF1054 wins on flow. The LiquaGen FK-CAT 10x54 costs $568 less ($849.99 vs $1,417.99).
iSpring WF1054
#6 in TankFull review
For city homes with chloramine that want a tank with no drain or power, but its short warranty is a weak point at this price.
Amazon $1,417.99$1,417.99
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 LiquaGen FK-CAT 10x54 for price ($849.99 vs $1,417.99).
- Choose the iSpring WF1054 for flow (26 gpm service flow vs 12 gpm service flow).
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 | LiquaGen FK-CAT 10x54 | iSpring WF1054 |
|---|---|---|
| Overall rating | 2.9/5 | 2.8/5 |
| Running cost 25% | 47 $0.85 per 1,000 gallons ($849.99 every 1,000,000 gallons) | 50 filter cost or capacity not published (neutral score used) |
| Certification 25% | 0 no certification in a public listing, no tested to claim | 0 no certification in a public listing, no tested to claim |
| Flow 15% | 70 12 gpm service flow | 100 26 gpm service flow |
| Price 20% | 87 $849.99 | 51 $1,417.99 |
| Warranty 15% | 0 warranty not published, scored as none | 0 1-year warranty |
Specifications
| LiquaGen FK-CAT 10x54 | iSpring WF1054 | |
|---|---|---|
| Filtration | ||
| Capacity | 1,000,000 gallons | - |
| Replacement filters or media | $849.99 | $1,417.99 |
| Running cost | $0.85 per 1,000 gal | - |
| Stages | 1 | 1 |
| Chloramine | Yes | Yes |
| PFAS | No | No |
| Build | ||
| Flow | 12 gpm | 26 gpm |
| Ports | 1 in | 1 in |
| Backwashing | Yes | No |
| UV stage | No | No |
| Warranty | - | 1 year |