Oxygen Tanks (empty)

Product Description
Maximum quantity available reached.

The Oxygen Tank Cylinder is an empty oxygen tank to use with ultra-pure ozone generators.

NOTE: These oxygen tanks are shipped empty.  For information on how to get them filled, read this article.  

Key Features:

  • Brushed aluminum for lightweight durability
  • Connects to oxygen regulators
  • Shipped empty but you can get filled locally

Product Description:

There are three different oxygen tanks.  Two connect to 870 medical oxygen regulators and one connects to a 540 industrial regulator.  Make sure you purchase the tank that fits to your regulator.

  • 540 Industrial Tank (Size R - 20 cu/ft) - Fits to a 540 regulator and gets filled at industrial or welding oxygen supply shops.  A fill will typically last someone 6 - 12 months, depending on usage.  
  • Medical Oxygen Tank Cylinder (Size D - 425L) - Fits to an 870 regulator, gets filled at a medical oxygen supply, and requires a prescription from a doctor to get filled.  A tank this size will typically last someone 6 - 12 months.
  • Medical Oxygen Tank Cylinder (Size M6 - 165L) - Fits to an 870 regulator, gets filled at a medical oxygen supply, and requires a prescription from a doctor to get filled.  A tank this size will typically last someone 1 - 3 months.  

Click here to learn all about getting oxygen tanks and regulators.  

You will need an oxygen prescription to get 870 medical oxygen tanks filled.  

*All cylinders are shipped empty. We do not sell or ship filled oxygen cylinders because it's five to six times more expensive.

*Oxygen tank regulator not included
* Product images may differ from the actual product.



6 reviews
Customer Reviews
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Filter Reviews:
Nancy G.
United States

seal is broke

I have to return it

Julie E.
United States United States

Why you should buy an Oxygen tank

Purchasing an oxygen tank was very helpful in setting up my ozone equipment. Having never used oxygen before I wanted to make sure I got the setup right. Filling the tank is easy, and cheaper. It is an exchange system so you give them the tank and they give you a full one. It saves you money because all you pay for is the oxygen.

april r.
United States United States

Oxygen Tank

Thank goodness simply 03 had oxygen tanks for sale! I went to my airgas. I was told they had quit selling them and then I couldn’t even rent one that day. I had to fill out an application and wait for them to get back to me (which they never have done). Simply 03 shipped out a beautiful clean oxygen tank and I had it in a few days. Perfect!

Charles P.
United States United States

Tank taken (substituted)

In order to get oxygen from the local supplier, the tank was taken. The supplier provided me a full tank of oxygen. They claim that they were unable to fill my tank on-site. And so, I have no idea how the tank I purchased performs.

United States United States

Great product!!!

Fast delivery! Great product!

What is your return policy?

All Simply O3 ozone generators come with a 6 MONTH money back guarantee, from the date of completed order. If for any reason the customer decides to return the product within that time frame, we will refund the full price of the device minus the shipping cost. Shipping costs will not be refunded to the customer.

***Orders over $7,000USD will be subject to a 25% restocking fee two weeks after the date of the purchase. No returns allowed after 6 months.

This policy exists to encourage our customers to try the device. They can always return within 6 MONTHS, for any reason.

This policy applies to all purchases of an ozone generator device

Some products (such as a Complete Ozone Kit) includes both an ozone generator and accessories.  Unused accessories can be returned for a full refund within the 6 months only under the following criteria:
- It is unused
- It is undamaged
- It is returned with the entire kit, including the ozone generator and other accessories

Accessories and Regulators

Accessories, ozone add-ons, and ozone oils can be returned within 30 days of the purchase if they are unopened and unused.  After 30 days, we do not accept refunds of accessories.

Oxygen Tanks
Unused oxygen tanks may be returned within 30 days of the purchase date.  They must be shipped back empty and be entirely unused.  Refunds will no longer be accepted after 30 days.  

The customer is responsible for shipping the products to us.  

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