Column Pair (Sieve Beds) for Inogen One G3 Oxygen Concentrators

Column Pair (Sieve Beds) for Inogen One G3 Oxygen Concentrators

4.96 Average Rating of 27 Reviews Read Reviews

$99.00 On Sale $69.30


COMPATIBILITY: There are two different replacement column pairs available for InogenOne G3 POCs. Older InogenOne G3 devices, with flow settings from 1-4, use Standard Column Pairs (Part RP-320). Newer InogenOne G3 devices, with flow settings from 1-5, use "High Flow" Column Pairs (Part RP-321). Both column pairs look very similar; however High Flow Column Pairs usually include a blue sticker on the base of each column, and the letters HF in the column serial number. Also the dust covers on Standard Replacement Columns are typically black while the dust covers on High Flow Replacement Columns are typically orange.

USAGE: Column Pairs (Sieve Beds) should only be replaced as needed. When replacement is required the InogenOne G3 will alert you to the need with a Low Priority Alert reading "O2 Service Soon". This alert means that the columns should be replaced within 30-days. Column replacement is a simple process, that can be completed at home, without any special tools. For full instructions see the "Column Change Procedure" section of Chapter 6 of the InogenOne G3 User Manual.


Product Information

  • Manufacturer Inogen
  • Part Number(s) RP-320
  • HCPCS Code E1399
  • GTIN / UPC Code
  • Country United States of America (Typical Origin)


Average Rating of
Total 27 Reviews
  • Great Price

    Your company sent the Columns quick. The price was very reasonable.
    Written by j_mcotton, 2020-01-05
  • Great Service

    Had order in hand, and ready for use in less than week. Nice for first time order. Thanks.
    Written by danconnors, Florida2019-12-18
  • Inogen batteries was

    Was able to go to your site and found what I needed tight away ordered and there was no delay
    Written by kathysouth51, 2019-12-17
  • Excellent Customer Service

    I placed my order online and the next day I received a call advising they were currently out of stock on my item. I was given a time frame and options (including cancel and order elsewhere). I decided to wait and although they had indicated it would probably be 2 weeks, I received the columns in only a week. Every experience with Direct Medical has been positive. The columns were fine, what can you say about a replacement part?!
    Written by pjboyle51, Cincinnati2019-12-10
  • Good quality and affordable!

    Good quality , fast shipping! Would recommend happily!
    Written by sallys_white, Texas2019-12-07
  • Excellent

    I have been withyou for while great job
    Written by bakerjoyce246, Lancaster Ohio2019-08-24
  • Inogen sieve colum

    Purchased and shipped we got2 times no problem
    Written by hallmartha1, Ga2019-07-09
  • Replacement column pair

    Fast shipping and a great price, thank you. Best place to get replacement parts for my. Inogen OneG3.
    Written by merimac2, 2019-05-15
  • My order with

    Their prices are comparable to other stores. Their shipping was fast. And their products are of good quality. Overall a great experience. I would gladly do business with them again.
    Written by jrauck31, Columbus, Ohio2019-04-09
  • Fantastic!

    As advertised, quick free delivery, good price
    Written by seshleman772016, 2018-12-04
  • Inogen One G3 Sieve Bed Replacements

    Prompt delivery, good pricing, easy to understand instructions. Overall I have to give this a 5 star rating.
    Written by donald14783, 2018-12-01
  • Fast Service

    They arrived fast and clear instructions on how to replace them!!
    Written by jcasboh1, 2018-10-31
  • Sieve Columns

    Perfect, good price, good ship time, good instructions.
    Written by boscoered, 2018-08-01
  • Muy bien

    Buena compra fácil y rapido. Muy cumplidos en la entrega. Ciento por ciento confiable
    Written by rafaelaguirre-2904, 2018-05-25
  • Surprised

    I could not believe how fast I received my order, at no extra charge. Thank you very much.
    Written by wetimmes, 2018-04-15
  • Sieve Beds

    I let my 10 yo grandson install them.
    Written by smarsha6, 2018-02-06
  • Fixed the problem

    It stopped the dinging and were very easy to change. Made my wife happy!
    Written by wayler45, 2018-01-26
  • Ease of installation

    Included instructions make columns easy and quick to replace therefore, with overnight shipping, I was back in business in one day.
    Written by K Mann, 2017-01-09
  • A great way to save money

    I ordered new cyclinders and replacement filters for my Ingen one G3 oxygen concentrator. It's much cheaper to do it yourself and it's easy. It comes with instructions and even has a phone number if you're having problems. This is my second time replacing my own filters for my Inogen one G3. Thanks Direct Home Medical.
    Written by Crystal , 2016-10-14
  • Worked as directed, don't forget to reset the machine after installation

    The new canisters do what they need to do. Replaced the canisters and turned it on. Started working but after an hour or two would beep constantly. Looked at the bottom of the box and saw reset instructions. Did the reset and no more issues. Will by again in 18 months when the canisters wear out.
    Written by Richard, 2016-08-03
  • Rapid delivery

    As soon as I place my order for the two column pair, I receive the order within two-three days. I'm happy about that. Without a doubt, DHM takes care of their customers.
    Written by Ronald, 2016-05-04
  • 2nd time a charm

    The first set of columns arrive with one having the boot cover off and the second totally trashed. neither the original box or shipping box showed damaged and the missing parts of the cylinder were not in the box, implying it was packed that way. New ones sent and return label. New ones work fine.
    Written by Bruce, 2016-01-18
  • Very pleased

    Customer service was great. Questions were answered as order was completed. Delivery was as promised, 2 days. Price was good. Couldn't be happier with my experience. Will definitely return for future orders for my Inogen One.
    Written by Sue F., 2015-07-22
  • Inogen - Column Pair

    I didn't Know that the Column Pair in the Inogen One G3 needed to be replaced, let alone that the replacement was before a year of buying it. I needed my concentrator to work perfectly for a long trip I was taking. I came to this website and chat with a customer representative, and I bought it immediately while chatting. Didn't have to go any place else. It came on time for my trip and solved my problem.
    Written by Carioppe, 2015-05-15
  • Very Satisfied

    The product arrived in a timely fashion and was exactly what I needed.
    Written by O2 Addict, 2015-01-14

    Written by DONALD S, 2014-09-14
  • speedy response

    I ordered some supplies for my portable concentrator and was very pleased to receive my shipment within a couple days. I had expected 8-10 days for the shipment to be processed and sent and it was great to get it so fast. Mainly because I was unable to use it until I got the item I ordered. I was stuck at home with the bigger unit. I will definitely get all my future supplies from Direct Home Medical
    Written by Moe S, 2014-03-26