Output Filter Tool for Inogen One (RP-404) - Image 2

Output Filter Tool for Inogen One (RP-404) - Image 3

Output Filter Tool for Inogen One (RP-404) - Image 4

Output Filter Tool for Inogen One (RP-404) - Image 5

Output Filter Tool for Inogen One (RP-404)

Genuine Inogen RP-404 output filter tool — removes the output filter without damaging your device.

Rated 4 out of 5 based on 3 customer ratings

(3 customer reviews)

US$36.00

In stock

Call (786) 755-8063

Genuine Inogen output filter removal tool (RP-404)
Lifts the cannula barb so you can change the output filter
Works with the RP-401 (G3) and RP-410 (G4, G5, Rove 6) filters
Ergonomic design — avoids damage from pliers or screwdrivers
A must-have for anyone doing routine filter maintenance
Free shipping on orders $99+

Genuine Inogen output filter removal tool (RP-404)
Lifts the cannula barb so you can change the output filter
Works with the RP-401 (G3) and RP-410 (G4, G5, Rove 6) filters
Ergonomic design — avoids damage from pliers or screwdrivers
A must-have for anyone doing routine filter maintenance
Free shipping on orders $99+

Genuine OEM partFree shipping on orders $99+Ships from Miami, FLExpert help · (786) 755-8063

Secure checkout · financing available

VISAAMEXDISC●VERaffirm

Brand: Inogen
SKU: RP-404
Category: Filters

In short

Change filters safely, no pliers needed

The RP-404 is the genuine Inogen tool that safely removes and reseats the output filter and cannula barb. It fits the G3 (RP-401 filter) and the G4, G5, and Rove 6 (RP-410 filter). It is a tool, not a filter, and it is not needed for internal filters.

This little tool grips the cannula barb so you can lift it cleanly and reach the output filter beneath it — no scratched ports, no forcing it with the wrong tool.

✅ Inogen One G3 ✅ Inogen One G4 ✅ Inogen One G5 ✅ Inogen Rove 6 ❌ Not needed for internal filters (those come out by hand)

Shop the compatible concentrator: Inogen One G3 · Inogen One G4 · Inogen One G5

Removes the filter safely

Grips the barb so it lifts cleanly and you can reach the output filter.

Protects the port

Purpose-shaped to avoid the scratches and cracks a screwdriver or pliers can cause.

Genuine Inogen tool

Matches the barb geometry on the G3, G4, G5, and Rove 6.

Details

What's included

One genuine Inogen RP-404 output filter tool with an illustrated step-by-step guide.

Why genuine matters

The genuine tool matches the barb geometry so it lifts without slipping or marring the port. Improvised tools like pliers or screwdrivers can crack the housing or scratch the outlet.

Frequently asked questions

Which models does this tool work with?

It works with the G3 (RP-401 output filter) and the G4, G5, and Rove 6 (RP-410 output filter).

Do I have to use this tool to change the output filter?

It isn't strictly required, but it makes removing and reseating the barb much easier and helps you avoid damaging the device.

Is it needed for the internal intake filter?

No. Internal intake filters come out by hand; this tool is for the output filter under the cannula barb.

Not sure this is the right part?

Send us a photo or call — we'll confirm the exact part for your unit.

Call (786) 755-8063

Dimensions	8 × 6 × 4 in
Compatible with	Inogen One G3, Inogen One G4, Inogen One G5, Inogen Rove 6
Condition	New
Accessory Type
Family Type
Role Type

3 reviews for Output Filter Tool for Inogen One (RP-404)

4.0

Based on 3 reviews

66%

33%

Rated 5 out of 5

Deb (verified owner) – 31 July, 2026

Thank you for having the supplies I needed.
Rated 5 out of 5

Mila – 15 August, 2025

So great !
With this tool, I was able to remove the broken barb and install the new one. My husband helped me in 2 minutes. Thanks for the guide and your patience!
Rated 2 out of 5

Phillip (verified owner) – 12 July, 2025

Did not resolve the issue
Did not resolve the issue.