Scuba Tanks

Dive Tank | Scuba Tank at Divers Direct

Let Divers Direct help you choose your scuba tank from our selection of dive tank with a variety of sizes and materials for you to choose from.

SCUBA stands for Self-Contained Underwater Breathing Apparatus. In order to breathe underwater you will need a scuba tank.

Dive cylinders are made from either Steel or Aluminum materials. Steel tanks are offered in High Pressure or Low Pressure Tanks. High Pressure steel tanks allow up to 3442 psi to be pumped into a cylinder while low pressure steel tanks can fill up to 2640 psi. Steel tanks weigh more due to the material in which it was made requiring less weight to be used in a weight belt. This is a benefit for some divers. Divers Direct carries 4 sizes in Blue Steel tanks. Our sizes are 80 cubic foot, 100 cubic foot, 117 cubic foot, and a 133 cubic foot cylinder. The 117 or 133 cubic foot steel cylinder would be recommended for divers who are in the technical range and do very deep diving. If you are a recreational diver these tanks may be too heavy. An 80 cubic foot cylinder is the most often purchased steel cylinder. It's not too heavy but will allow you to go through your air a lot more.

Standard psi in an aluminum cylinder is 3000. There are 2 different 80 cubic foot tanks that we carry. There is the regular 80 cubic foot cylinder (sku 475) which holds the standard 3000 psi. The other 80 cubic foot cylinder is a Neutrally Buoyant Tank which allows for an extra 300 psi for a total of 3300 psi in this cylinder. As you guessed, this tanks is also neutrally buoyant in the water. 80 cubic foot tanks are the most popular among recreational divers. They are the most commonly found tanks on the water. Divers Direct also carries the 40 cu ft, 50 cu ft, 63 cu ft, and a 100 cu ft. There is a size for everyone.

If you are technical diver or if you are just wanting that extra piece of mind, then a pony bottle is for you. Pony tanks are small cylinders that are used primarily as a back-up air source. The main difference between a pony tanks and a spare air source is the air capacity. You will be able to get more air out of a pony tanks. They will allow you to make your safety stops as necessary without running out of air. Pony tanks come in 6 cu ft, 13 cu ft, 19 cu ft, and 30 cu ft sizes.

When purchasing tanks, evaluate how quickly you go through your air in your cylinder, the frequency of diving you are planning to do and the type of diving you will be doing. There is no "one-size-fits-all" cylinder out there in the market. If you are in doubt and need assistance our trained sales staff is here to help you. Please contact our professional sales staff toll free 1-800-DIVE-USA or through e-mail at Divers Direct Contact Page.

Following the steps listed below would ensure a well maintenance cylinder.

• Remember is to keep at least 200 - 300 psi in your cylinder at all times.
• Never drain your tank completely. Draining your cylinder will allow moisture to enter allowing rust and corrosion to take place as well as creating pitting in the tank which is grounds for condemning it.


• Store your scuba tank in a cool dry place.
• Avoid rough handling that will cause dents, gouges or nicks in the tanks.
• This will also invite corrosion of the metal and can weaken the cylinder.
• It is important to get a Visual Inspection (also known as a VIP) on your cylinder at least once a year by a certified VIP technician.
• Every 5 years your cylinder will require a hydro-static testing.

Please note: all scuba cylinders that Divers Direct carry in their stores are already nitrox compatible. Due to shipping restrictions all scuba cylinders shipped via air will not include the air fill. All cylinders being shipped via ground transportation will only have 100 psi in order to keep the Visual Inspection current. If you are planning on purchasing in one of our stores please bring your certification card. All purchases in stores will require your certification card up front before a visual inspection or a fill will be done. No exceptions.

Scuba cylinder selection can be summed up as follows: pick a cylinder that is light enough for you to carry and large enough to supply air for an ascent and safety stop from your planned diving depth.

For shallow reef diving, you may require only a Luxfer Aluminum Cylinder 63 cu ft or Luxfer Aluminum Cylinder 50 cu ft . For deeper diving you'll want to consider our most popular size - the standard Luxfer Aluminum Cylinder 80 cu ft . It can easily support an average sport diver on a 130 foot scuba dive in moderate currents and weighs only 31 pounds. If weight is no concern and your air consumption is higher, choose the 100 cu ft. model.

For people with smaller frames, the Luxfer Aluminum Scuba Tank both size 50 cu ft and 63 cu ft are the best bet. A Tank 40 cu ft. and less is known as Pony Tank(smaller tank). Technical divers have recognized the added safety of redundant air supplies (Dive Tank). Today, Recreational divers use Pony Tank for wall and wreck dives.

Item	Description	Capacity Cu. Ft.	Service Pressure P.S.I.	Weight Empty lbs.	Salt Water Buoyancy Full	Salt Water Buoyancy Empty	Height
7713	Pony	6	3000	4.2	-2.99	-2.5	13.88"
471	Pony	13	3000	7.5	-3.1	-2.2	16.13"
469	Pony	19	3000	9.7	-2.9	-1.4	21.56"
473	Pony	30	3000	13.1	-2.5	-.03	24.85"
6133	Pony	40	3000	16.8	-2.4	0.6	27.75"
462	Primary	50	3000	22.7	-3.9	-0.3	22"
464	Primary	63	3000	28.4	-3.6	1.1	24.85"
19435	Primary	80	3300	36.7	-7.3	-1.5	28.81"
475	Primary	80	3000	33.2	-3.4	2.5	29.06"
457	Primary	100	3300	41	-4.3	3.2	26.2"
44528	Primary - Steel	80	3442*	28.6	-8.05	-1.74	25.87"
44530	Primary - Steel	100	3442*	34.3	-8.4	-.6	30.39"
44532	Primary - Steel	117	3442*	38.9	-9.1	0.16	29.2”
44534	Primary - Steel	133	3442*	42.7	-9.1	-1.45	26.78"