Inogen One G4 Replacement Column Pair - Oxygen Accessories - Two Removable Metal Columns - 0.63 lb., 2.21 in. W x 2.37 in. L x 5.50 in. H

Works perfectly

So easy to install

Affordable. Works well

Perfect fit for g4 replacement. Easy to install.

Works great!

Inogen packaging appeared open. Item appears not used. Only the life of the Column will tell. All else is A ok.

Factory boxed, easy to install. This is the second time I have replaced my towers on 6 years. Good product.

Excellent product. Just plug it in and it works perfectly. Exactly what I needed as a replacement for my portable oxygen unit. Very easy to install, reliable, and works as expected. Highly recommended.

Bien emballé et fourni avec guide de remplacement

Comme c'est l'hiver, l'emballage ne comportait AUCUN isolant. Aussi les colonnes m'ont été livrées très très froides. Par précaution j'ai dû les laisser reposer 48h à la température de la pièce avant de les installer.

This item is for a piece of a oxygen concentrator. This concentrator is to keep you breathing as keeping you alive. The reason for a one is that after the installation it didn’t give a success answer. Now if I use this concentrator I don’t know if it will work properly.