Devices descending from K944385
5 later devices reach MD400 a/B/C/D/E/F/G through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K993200 | MD 420/440/460/470/480/490 | Isopure, Corp. | 2000 | 4 | — |
| +2 | K051620 | Matrix Digital Reverse Osmosis Water Treatment System, Model Eqrmd Series | Better Water, Inc. | 2005 | 3 | — |
| +3 | K161844 | Matrix Pre-Treatment Controller | Better Water, LLC | 2016 | 0 | — |
| +3 | K151637 | UPT Series Medical RO Water System | Specialty Water Technologies | 2015 | 1 | — |
| +4 | K250514 | UPT Series Medical RO Water Treatment System | Specialty Water Technologies, Inc. | 2025 | 0 | — |