e/i/j High-Efficiency packs, Combo j kits, and s9 filters are different trays.
| Family | Card | Hard stop |
|---|---|---|
| e / i / j | HEPA-EIJ | Still confirm Combo vs non-Combo |
| Combo j7 / j9 | COMBO-J-FILTER | Not always the same as classic e/i/j 3-packs |
| s9 | S9-FILTER | Different geometry |
| Edge brush | EDGE-BRUSH-J | Series hubs differ |