Backpack Fit for Rhythm P2 and React Health POC2000–Lightweight, Mesh Ventilated, Storage for Rhythm P2 Accessories-Fits Only E6/E7 Models–Will NOT Fit Rhythm P2-S4 or Larger Units

The backpack is designed for the Rhythm Healthcare P-2 and it is a perfect fit. The material is tough but it is comfortable to use.The only drawback is the opening for plug for charging. It is difficult to open and it is hard to insert the charging plug.But I would recommend this item to everyone that has a P-2 portable concentrator

This fits the portable oxygen unit perfectly. Love the extra storage departments. I live on a ranch and ride horses this little backpack made working around the ranch so much easier. I didn't have a strap falling off me or having the tank get in my way. I can wear it when I'm on horseback as well. It very comfortable.

I love the size of it & the ability to add or remove extra storage. my machine fits in it well BUT the 3 things that I think need changed are , 1. the flap on the charging port needs to be bigger.. it's a pain trying to get the charging cord hookedup. 2. the clear window on top needs to be bigger so you can see the alarm lights without having to manipulate it around or unzip it to see what's going on and 3. the chest/waist straps are crap, a real hassle to use by yourself and need a better attachment point or a fixed loop for them to go in. with these issues fixed I would recommend it to anyone.

This backpack has it all, fits my unit perfectly and it has a lot of Pluses. It was made by a small american company and its a great product

While the stock carry case is better for store and Dr visits, this is much better if you are carrying a suitcase or bag. Also better for walking since it keeps it from flopping around. Like it greatly.

Nice enough materiel. Generally good workmanship. But it is made too small to easily slide on and off the concentrator. The opening for the charger input is about an inch off set from the concentrator charging jack. The holder for the hose is in a position that it pinches the oxygen hose when wearing the backpack.

This is an absolutely fantastic product! In a small but really needed way, it’s been life changing. I’ve always carried a backpack, so when I had to start carrying the portable oxygen machine over one shoulder or carry it like a purse I was constantly frustrated. Easily hooks up to car charger and home charger, and room for my wallet too. The bottom compartment is roomy and easily removed if I decide it’s not needed. I would 100% recommend!

I love my new backpack for my poc, I didn't know if it would fit because I have an AryaAirtivo Max this was designed for the Rhythm p2, it fits perfect the oxygen company wanted to charge me $200.00 for the one that fit mine! I love it and would recommend you to anyone. I love the hands free of it.