DA29-00020B vs DA29-00003G
Both are Samsung refrigerator cartridges, and they are the pair most often mixed up.
Short answer
Different housings — not interchangeable.
The 00003G is shorter and wider, with a broad flange where the 00020B has a narrow collar.
| Specification | DA29-00020B | DA29-00003G |
|---|---|---|
| Brand | Samsung | Samsung |
| Housing | Samsung HAF-CIN housing | Samsung HAFIN housing |
| Rated life | 300 gal · 6 mo | 300 gal · 6 mo |
| Filtration | 0.5 µm nominal | Carbon block |
| Certification | NSF/ANSI 42, NSF/ANSI 53 | NSF/ANSI 42, NSF/ANSI 53 |
| Installation | Twist-in, quarter turn, no tools | Twist-in, quarter turn |
| Refrigerator models listed | 34 | 0 |
| Also sold as | DA29-00020A, HAF-CIN, HAF-CIN/EXP, DA97-08006A | DA29-00003A, DA29-00003B, HAFIN1/EXP, HAFIN2/EXP |
What they share
Both are certified to NSF/ANSI 42 and NSF/ANSI 53. That covers the same basic contaminant set, so filtration performance is not the deciding factor between them.
Where they differ
- Fit. DA29-00020B and DA97-17376B (HAF-QIN) are not interchangeable. Check whether your cartridge is flat-ended or has a stepped collar.
Which one do you need
This is not a choice — it is a lookup. The refrigerator decides. Check the number printed on the cartridge in the housing, or look up your refrigerator model. If both numbers appear on your old cartridge, the housing accepts the newer of the two.