How often do the columns need replacing?

Inogen rates the G3 columns for about one year of typical use. Replace them sooner if the unit shows a column or oxygen error, output feels weak, or your provider's schedule says so.

Will this pair work with my G3?

It fits the standard Inogen One G3 running at settings 1 through 4. If your G3 is the setting 5 version, you need the higher-flow column instead.

Can I install the columns myself?

Yes. The columns pull out and seat back into the concentrator body without tools. Follow Inogen's instructions and run the unit to confirm no error appears.

Does it come with a warranty?

No written warranty is included with this part. Any coverage would come from the seller or from Inogen's policy on accessories.

Two replacement columns, one pair. The concentrator, battery, carry bag and accessories are not included.

When is the price lowest?

Column pairs rarely go on deep discount because they are a required consumable. Compare across stores and buy before an error code forces a rushed purchase.

Inogen One G3 Replacement Column Pair (Settings 1-4)

Last price we saw

$104.00last seen Nov 1

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Our take on the Inogen One G3 Replacement Column Pair (Settings 1-4)

The Inogen One G3 Replacement Column Pair (RP-320) is the two-sieve-bed cartridge set that lets a G3 portable oxygen concentrator produce oxygen again. It is rated for settings 1 through 4, so it fits standard G3 use rather than the higher-flow G3 that needs the setting 5 column. Each pair is a consumable: Inogen rates the columns for roughly a year of typical use, then output and purity drop and the unit needs a fresh set.

Best forG3 owners due for their yearly column changeUsers running the concentrator at settings 1 to 4Travelers who keep a spare pair on hand