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5 lb. CO2 Cylinder

5 lb. CO2 Cylinder


Item #: CO1113

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Temporarily Out of Stock

5-pound brushed aluminum cylinder. Made in the US. Brand new and empty. Equipped with Sherwood Cylinder Valve w/ black hand wheel. CO2 regulators and CO2 cylinders have CGA 320 fittings for USA & Canada. A CGA-320 fitting has a 0.825-14 NGO-Right Hand Thread.

17.5" Tall, 5.25" Diameter.

**Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under our Low Price Guarantee, please be certain the product you want to price match is the same make and model.

Want to learn more about CO2 Injection? Check out our blog post: CO2 for Planted Aquariums: Dosing Methods and Setups.

5 Stars


Reviewed on
June 18, 2011

Yes, I would recommend this.

The bigger the better

High quality cylinder. I've been using this on a smaller calcium reactor (Coralife reactor for 250 gallon system) for nearly four years now and still have only filled the cylinder once.

Was this review helpful? 5 0

david brinson

Reviewed on
October 13, 2010

Yes, I would recommend this.

Outstanding if you can fill it

Good cylinder, supplies more consistent pressure than "swapped" cylinders I have used. (Thus making calibration of your bubble counter in a calcium reactor application more consistent) Note that it may be difficult to find a dealer of CO2 to fill your tank directly, most use the "tank swapping" system. Make sure you have access to a CO2 dealer before you buy a tank. I got mine from a company that refills CO2 fire estinguishing systems and paint ball guns. Most welding supply companies can point you to a local CO2 provider if you ask nicely.

Was this review helpful? 10 0

brian smith

Reviewed on
December 27, 2009

Yes, I would recommend this.

Great CO2 Cylinder!

I now have two of these cylinders running with the deluxe CO2 Regulator w/Bubble Counter (item #CO3117) and they work great. I couldn't be more pleased!

Was this review helpful? 1 0

az plant guy

Reviewed on
October 07, 2009

Yes, I would recommend this.

The Tank!

Nice Tank! filled perfect, no problems.

Was this review helpful? 2 0

pete pepper

Reviewed on
September 16, 2009

Yes, I would recommend this.

No Charge?

It is just what it says it is..I can only wish it came charged with CO2 already since I am having a hell of a time finding a place to charge it.

Was this review helpful? 0 1

robson conolly

Reviewed on
August 14, 2009

Yes, I would recommend this.

Feed Back

I love thanks.

Was this review helpful? 1 0

rich koller

Reviewed on
February 18, 2009

Yes, I would recommend this.


much better looking than what I would get with exchanges at a shop. just make sure you have a place that fills tanks and just does not exchange them. If they just exchange than its not worth paying extra for a pretty tank just to exchange it for less quality. I keep mine outside the cabinet and am not unsatified with how it looks

Was this review helpful? 3 0

preston harrison

Reviewed on
January 24, 2009

Yes, I would recommend this.

10# tank

Seems of function as advertized

Was this review helpful? 1 0

jerry ling

Reviewed on
August 26, 2008

Yes, I would recommend this.


great product! nothing to complaint.

Was this review helpful? 0 0

maximo haddad spreca

Reviewed on
July 25, 2008

Yes, I would recommend this.

Perfect tank.

It was the least expensive alternative I could find. I used a little teflon tape on the threads to seal tank/regulator joint. Other that that, the tank showed no singns of leaks or faults. On my unit, the inspection/build date was engraved on the unit itself. Other than having to dissassemble the regulator to apply teflon tape, set up was very straight forward and quick. Main valve seals perfectly without problems.

Was this review helpful? 1 0

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