Home Master TMAFC-ERP
#10 in With tankFull review
For someone who wants low water waste and mineralized water without needing an outlet. Buyers who want an NSF/ANSI 58 certification should look elsewhere.
Amazon $419.90$419.90
The Home Master TMAFC-ERP and the Brondell Circle RC100 are evenly matched, rated 2.9 and 2.9. The Home Master TMAFC-ERP leads on warranty and filter cost. The Brondell Circle RC100 wins on certification and price. The Brondell Circle RC100 costs $59.91 less ($359.99 vs $419.90).
Brondell Circle RC100
#11 in With tankFull review
For a household that wants a certified, compact tank system with a filter change reminder. Families who draw a lot of water at once will outrun its small tank.
Brondell $359.99$359.99
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 Home Master TMAFC-ERP for warranty (5-year warranty vs 1-year warranty) and filter cost ($113 a year in replacement filters vs $205 a year in replacement filters).
- Choose the Brondell Circle RC100 for certification (certified to NSF/ANSI 58 vs no third-party certification) and price ($359.99 vs $419.90).
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 | Home Master TMAFC-ERP | Brondell Circle RC100 |
|---|---|---|
| Overall rating | 2.9/5 | 2.9/5 |
| Certification 25% | 0 no third-party certification | 100 certified to NSF/ANSI 58 |
| Filter cost 20% | 49 $113 a year in replacement filters | 12 $205 a year in replacement filters |
| Water wasted 15% | 82 1:1 pure to drain | 50 drain ratio not published (neutral score used) |
| Output 10% | 0 50 gallons a day | 0 40 gallons a day |
| Price 15% | 15 $419.90 | 27 $359.99 |
| Warranty 15% | 100 5-year warranty | 0 1-year warranty |
Specifications
| Home Master TMAFC-ERP | Brondell Circle RC100 | |
|---|---|---|
| Filtration | ||
| Output | 50 gallons a day | 40 gallons a day |
| Pure to drain | 1:1 | - |
| Stages | 7 | 4 |
| Remineralization | Yes | No |
| NSF/ANSI 58 | No | Yes |
| Other certifications | - | NSF/ANSI 42, 53, 372 |
| Replacement filters | $113 a year | $205 a year |
| Build | ||
| Tank | 3.2 gal | 1.6 gal |
| Booster pump | No | No |
| Smart faucet | No | Yes |
| Warranty | 5 years | 1 year |