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Inogen One® G4® Replacement Column Pair
$118.00
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Genuine Replacement Column Pair for Inogen One G4
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Restores oxygen purity and device efficiency
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DIY swap in minutes—no special tools required
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Replace when prompted by the device or about every 12 months
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Pre-assembled pair for left/right column bays
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G4-specific (not for G3, G5, or Rove 6)
Inogen One® G4® Replacement Column Pair RP-406
The Inogen One G4 Replacement Column Pair RP-406 refreshes the heart of your concentrator—its sieve beds. Over time, moisture and normal use reduce the effectiveness of the columns, which can lead to purity warnings and reduced performance. Swapping the columns on schedule helps maintain reliable oxygen concentration and keeps your G4 running as intended.
This is a user-replaceable maintenance item. Most owners complete the change in just a few minutes by following the quick steps below.
What’s Included
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1 × Replacement Column Pair RP-406 for Inogen One G4 (pre-assembled left & right columns)
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Quick start card with replacement instructions
Specifications (at a glance)
| Feature | Detail |
|---|---|
| Part Number | RP-406 |
| Compatibility | Inogen One G4 only |
| Function | Zeolite sieve beds for oxygen separation |
| Replace When | Device shows “Replace Columns” alert or about every 12 months (usage dependent) |
| Tools Needed | None (hand-replaceable) |
| Reusability | Not washable / not reusable |
| Condition | New, non-sterile maintenance part |
Replacement Guide
| Step | Action |
|---|---|
| 1 | Power off the G4 and disconnect power. Let the unit sit for 2–3 minutes. |
| 2 | Open the column compartment (side/bottom panel, per user manual). |
| 3 | Slide out the old left/right columns—pull straight, do not twist. |
| 4 | Insert the new columns fully until seated (match orientation). Ensure O-rings are clean and undamaged. |
| 5 | Close the panel and restart the device. Clear the alert if displayed and verify normal operation. |
Tips: Keep the area dry and dust-free during the swap. Do not apply oils/grease to O-rings. Do not attempt to wash or regenerate used columns.
When Should I Replace the Columns?
| Scenario | Recommendation |
|---|---|
| Device displays Replace Columns message | Replace now |
| Purity warnings / persistent alarms after filter maintenance | Replace columns after verifying filters are clean and seated |
| Normal preventive maintenance | About every 12 months (may vary with hours, humidity, environment) |
| After liquid intrusion or severe moisture exposure | Replace columns once the device has dried and passed checks |
Compatibility
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Works with: Inogen One G4
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Does not fit: Inogen One G3, G5, Rove 6 (use their model-specific column pairs)
FAQs
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Do I need a prescription to buy columns?
No. Columns are a maintenance component and typically do not require a prescription. -
How long do columns last?
Many users replace about once a year. High humidity, heavy usage, or dusty environments may shorten the interval. -
Will new columns fix purity alarms immediately?
In most cases, yes—if filters are clean and the device is otherwise functioning normally. -
Can I wash or reuse old columns?
No. Columns are not washable. Replace with a new pair. -
Is any tool required?
No tools are needed. Follow the steps above with the device powered off.
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