For a small household that wants a certified tank RO system at a low price. Larger families should look at the ROES-100.
Amazon $179.99The APEC ROES-50 is the better under-sink reverse osmosis system overall, rated 3.6 to 2.6. The APEC ROES-50 leads on certification, price and filter cost. The Home Master TMHP HydroPerfection wins on warranty. The APEC ROES-50 costs $319.96 less ($179.99 vs $499.95).
For well water homes that want UV and an iron prefilter with low water waste. On treated city water the cheaper TMAFC-ERP does the same job.
Amazon $502.06 Home Master $499.95Prices 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 APEC ROES-50 for certification (certified to NSF/ANSI 58 vs no third-party certification), price ($179.99 vs $499.95) and filter cost ($85 a year in replacement filters vs $163 a year in replacement filters).
- Choose the Home Master TMHP HydroPerfection for warranty (5-year warranty vs 1-year warranty).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every with tank under-sink reverse osmosis system; a clear win is highlighted. How we rank explains each one.
| Factor weight | APEC ROES-50 | Home Master TMHP HydroPerfection |
|---|---|---|
| Overall rating | 3.6/5 | 2.6/5 |
| Certification 25% | 100 certified to NSF/ANSI 58 | 0 no third-party certification |
| Filter cost 20% | 67 $85 a year in replacement filters | 27 $163 a year in replacement filters |
| Water wasted 15% | 50 drain ratio not published (neutral score used) | 82 1:1 pure to drain |
| Output 10% | 0 50 gallons a day | 0 50 gallons a day |
| Price 15% | 85 $179.99 | 0 $499.95 |
| Warranty 15% | 0 1-year warranty | 100 5-year warranty |
Specifications
| APEC ROES-50 | Home Master TMHP HydroPerfection | |
|---|---|---|
| Filtration | ||
| Output | 50 gallons a day | 50 gallons a day |
| Pure to drain | - | 1:1 |
| Stages | 5 | 9 |
| Remineralization | No | Yes |
| NSF/ANSI 58 | Yes | No |
| Other certifications | NSF/ANSI 372 | - |
| Replacement filters | $85 a year | $163 a year |
| Build | ||
| Tank | 4 gal | 3.2 gal |
| Booster pump | No | No |
| Smart faucet | No | No |
| Warranty | 1 year | 5 years |
