Online since 2002 |   866-316-0162

Buy Oxygen Cylinder | Portable Oxygen Tank | Oxygen Tank for Sale

1 Products
  • Sort By
Best Reviewed
Invacare HomeFill Conserving Cylinder
Invacare HomeFill Conserving Cylinder

What is an Oxygen Cylinder?

Oxygen Cylinder is a metal container that makes oxygen easily accessible to patients with respiratory problems. Oxygen Tank for Breathing is used as a storage cylinder for oxygen gas. It comes in various sizes, types, and capacities to meet the varying requirements of different users. HPFY brings O2 cylinders that come in a durable design and serve you for a long time. Home fill cylinders are types of cylinders that allow patients to fill in oxygen using O2 concentrators. Small oxygen tanks allow users to travel as they can be carried anywhere. So now, people who require continuous supply can step out of the home or hospital settings. At, you can buy oxygen tanks by choosing the right option from a lot of varieties!

Types of Oxygen Tanks

Compressed Oxygen Tank

These are the most commonly used oxygen tanks but are popular because they are inexpensive and often covered by medical insurance. Compressed oxygen cylinders are heavy and they may have issues if not kept in an upright position. For portability small tanks can be filled with the big one.

Liquid Oxygen Tank

These tanks can store a greater amount of oxygen than the compressed oxygen tanks and weigh less. These are more expensive than the compressed oxygen tanks and you cannot take them on a flight. Also, these liquid O2 cylinders have a small shelf life as otherwise, the oxygen will evaporate. Portable small tanks can be filled with large ones.

Oxygen Tank Sizes

Cylinder Size Capacity (L) Weight (Lbs.) Height (In.) Diameter (In.)
M2 42 0.7 5.7 2.5
A [M4] 115 1.7 8.7 4.38
B [M6] 164 2.3 12 3.21
ML6 164 2.8 7.8 4.38
C [M9] 248 3.6 10.9 4.38
D [M15] 415 5.1 16.5 4.38
E [M24] 682 7.5 25.5 4.38
M60 1762 22.3 22.9 7.25
MM 3455 40.7 36.5 8

Oxygen Cylinder Sizes

*Note* The above size chart is intended to give an approximate sizing idea to its readers. The original measurements of various oxygen cylinders may vary based on manufacturers.

How To Refill A Portable Oxygen Tank At Home?

  • Check the cylinder pressure first
  • Close the toggle valve by rotating clockwise
  • Remove the conserver/regulator
  • Remove the post valve cover from the cylinder and the connector fillport cover from the compressor
  • Push DOWN the outer ring (sleeve) of the connector fillport to reset the connector
  • Position the cylinder in the compressor cradle
  • Align the cylinder fillport with the connector fillport
Filling the Oxygen Cylinder

*The illustration displays Invacare HomeFill CGA870 Post Valve Cylinder and Invacare HomeFill Oxygen Compressor*

  • Pull the outer ring of the connector fillport while pushing DOWN on the cylinder assembly to couple the cylinder fillport into the connector fillport
    Note: A"click" is heard when the cylinder is properly connected to the compressor
  • Press the compressor power switch to the ON position
  • After the cylinder is full, turn off the compressor power switch
  • Grasp the cylinder assembly with one hand and with the other hand, grasp the outer ring (sleeve) of the connector fillport and push DOWN
  • Lift up on the cylinder assembly to remove from the connector fillport
  • When the cylinder fillport is disconnected from the connector fillport, release the outer ring (sleeve) of the connector fillport
  • Remove the cylinder from the compressor cradle
  • Place the fillport covers back on the cylinder and the compressor
  • Install a compatible conserver or regulator
  • Open the toggle valve by turning counterclockwise and examine the conserver or regulator gauge to ensure cylinder is full (needle pointing into GREEN area).
    If the cylinder is not full, perform the following:
    • Re-fill of the Cylinder
    • If cylinder is not full after second attempt to fill, contact the provider

Which O2 Therapy Supplies Are Used With An Oxygen Bottle?

  • Oxygen CompressorOxygen compressors are used to fill compressed oxygen from concentrator to Home Fill oxygen cylinders.
  • Oxygen Concentrators - Oxygen Concentrators are used in synergy with compressors to fill oxygen tanks. These are widely used by people who carry small portable oxygen cylinders.
  • Regulators/Conserving Devices - Oxygen Conserving Devices and Regulators are used to keep a check on oxygen levels inside the tank. They are also used to control the outflow of oxygen.
  • Pulse Oximeters Pulse Oximeters are widely used along with oxygen therapy supplies to help caregivers monitor SpO2 levels in the patient’s blood. These are necessary to ensure they do not receive more than required O2 levels as it can be harmful to the lungs.
  • Oxygen Cannula & Mask Oxygen cannulas and masks are used with oxygen tanks to deliver oxygen to the user.
  • Carry Bags - Carry bags are frequently used by people who are prescribed oxygen and need to travel frequently. This allows them to carry cylinders anywhere with ease.
  • Racks and Stands - Oxygen cylinder racks are used at homes and medical facilities to store oxygen tanks when not in use. These are useful especially to keep oxygen tanks in an upright position, making sure cylinders don't roll around.

Oxygen Cylinder - Frequently Asked Questions

How do I safely use an oxygen tank?

  • Don’t let anyone smoke or in the room if a patient is using oxygen.
  • Always keep the tank your patient is using in the stand. Lay any other tanks on their sides and secure them so they don’t roll around
  • If the valve post breaks off a tank, the pressure can release and propel the oxygen tank forward quickly.
  • Keep the tank away from all heat sources like radiators, heat ducts, stoves, fireplaces, matches, and lighters Oxygen is flammable, i.e., it can catch fire instantly and make things burn or even explode.

How do I attach the regulator to the tank?

  1. Remove the plastic wrap from the valve post on the tank. It may contain a washer.
  2. Attach the regulator to the tank by slipping the regulator over the tank’s valve post. Align the pegs on the inside of the regulator yoke with the holes in the valve post. Slide the regulator forward so the pegs go into the holes.
  3. Fasten the regulator to the tank by turning the T-handle on the regulator until it is tight. If the handle is not tight enough or the washer is not in place, the tank will leak when the valve opens.

A word of Caution - Oxygen tanks must not be used near a fire as it acts as an oxidizing agent and feeds the fire. Be careful and be safe. Oxygen cylinders play a significant role in treating patients who have difficulty breathing, especially those on life support system, and are mostly used in hospitals, clinics, and healthcare facilities.

Where to buy Oxygen Tank?

Oxygen Tanks are used to deliver oxygen gas to a person that needs oxygen therapy. HPFY offers a wide range of oxygen tank for sale from top manufacturers such as Responsive Respiratory, Invacare Corporation, Life Corporation, and more.

Know More About Oxygen Therapy Supplies

Why Shop With Us

Hpfy CCAproach

Customer Centric Approach

Customer Care available 24/7 on chat and by phone 8AM – 8PM EST

Hpfy Safe-S-Shopping

Safe, Secure Shopping

We safeguard your information. Protecting Customer privacy is important to us

Hpfy AuthorizedRetailer

Authorized Retailer

A one-stop shop for most reputed brands in medical supplies and equipment.

Hpfy Easy-Returns

Customers Love Us!

INC 5000 company with over 95000 customer reviews

Hpfy Mobile/Flexible-Payment-options

Flexible Payment options

Competitive pricing, financing and flexible payment options available

Hpfy Easy-Returns

Easy Returns

Not every purchase works out, we get it.

Hpfy Resource-Archive

Resource Archive

Make informed decisions with access to articles and buying guides

Hpfy Serving-the-Global

Serving the Global Community

Over the past 2 decades, we’ve served more than one million customers


Oxygen Refill Systems - All You Need to Know

Ayush Henry Sep 01,2016

Homefill oxygen devices or oxygen transfill systems are popularly known as Oxygen Refill Systems. They are portable oxygen refill devices to be used at home for filling up empty oxygen tanks. By using oxygen concentrator technology, the concentrated oxygen is

Regulate and Supply – Oxygen Regulators

Taikhum Sadiq Jul 14,2016

Oxygen regulators are devices that enable a person to adjust the liter flow of oxygen from 1-25 liters per minute depending on the amount the doctor has prescribed for the device you are using. Regulators for children are specialized o

Oxygen and Travel - Using Oxygen Concentrator While Traveling

Taikhum Sadiq Jul 14,2016

Oxygen concentrators are generally used for oxygen supply in healthcare services, especially in areas where liquid or pressurized oxygen is either too dangerous or not feasible, such as at your home or in portable clinics.