Scuba Cylinders For Sale

We all have the same questions about cylinders:

What cylinder should I buy? What size? What will work best for me? Where will I have airfills done?

Most new divers  don’t really care what cylinder they dive with, they are just too happy to get into the water and explore. It’s the exhilaration of diving that pushes most thoughts from their mind. It is only later when scuba diving becomes a lifestyle that they see the benefit of investing in a cylinder for themselves.

If you are taking this step there are a few things to consider:


The most common cylinders on the market are made of steel, aluminium and carbon fiber. Carbon fiber cylinders are used for PCP rifle air fills and can’t be used for diving. Steel cylinders are the most frequently used cylinders in South Africa and most divers are trained with these. Steel is stronger and more hard-wearing than aluminium. To make up for its shortcomings aluminium cylinders have thicker walls to add tensile strength. This does tend to make them heavier than steel cylinders. Aluminium cylinders also tend to start floating as they empty which affects your buoyancy much more than a steel cylinder would.


A cylinder on its own won’t take you into the depths, it needs to be fitted with a valve first. Your regulator connects to the valve on the cylinder to control airflow. Make sure that the valve you purchase for the cylinder is rated high enough to handle the pressure in the cylinder. A net will cover the cylinder and protect it from scratching. Make sure to get this accessory for your cylinder because a cylinder that gets scratched can rust, especially when used in salt water. A cylinder boot is handy if you’re buying a steel cylinder. They have round bottoms so they can’t stand upright on their own. A boot is a rubber cone that fits over the cylinder to ensure your cylinder can stand upright.

Safety First

A cylinder rolling around in the back of your car on the way to a dive can be very dangerous. If the valve gets damaged when it rolls around it can come off the cylinder, essentially turning into a massive bullet. We have cylinder holders in-store that keep your cylinder safe during travel. It can also be mounted to a wall if you want to save space and keep it upright.


Cylinders for sale

Do you know the capacity your cylinder should be? You have a few options with the steel cylinders we have for sale.


You get 5 FREE AIRFILLS when purchasing a cylinder from Geko Divers.


Complete Steel Cylinder – 12 litre

A 12 litre cylinder is the size most people dive with. It’s ideal for backmount. Included with this Coltri Sub cylinder is a net, boot and valve.

Complete Steel Cylinder – 12 litre long

A 12 litre long is the most popular with sidemount divers. They have twice the air capacity someone with a backmount setup has. The longer cylinders is easier to carry on the side of their bodies than the previous shape. Included with this Coltri Sub cylinder is a net, boot and valve.

Complete  Steel Cylinder – 10 litre

A 10 litre cylinder is better for smaller divers like children. The smaller capacity cylinder weights less than the popular 12 litre cylinder making it easier to carry. Note that this does mean shorter dives if your air consumption is poor. Included with this Faber cylinder is a net, boot and valve.

Complete Steel Cylinder – 15 litre

A 15 litre cylinder is ideal for longer diving time or if your air consumption is heavy. Keep in mind that it does add extra weight and it’s harder to carry to and from dives. Included with this Coltri Sub cylinder is a net, boot and valve.

Have a query? Contact us:

Tel: 083 280 0059

or leave us a message here.

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