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FZONE 45g Disposable CO2 Cartridges with 5/8 Threaded Interfaces (2-Pack)

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Arrives Friday, Feb 13
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Features

  • FZONE 45g Disposable CO2 Cartridges with 5/8 Threaded Interfaces (2-Pack)

Package Dimensions ‏ : ‎ 7.09 x 4.06 x 1.65 inches; 14.07 ounces


Item model number ‏ : ‎ 45g


Date First Available ‏ : ‎ March 25, 2025


Manufacturer ‏ : ‎ FZONE


Best Sellers Rank: #15,592 in Pet Supplies (See Top 100 in Pet Supplies) #28 in Aquarium Air Pump Accessories


#28 in Aquarium Air Pump Accessories:


Customer Reviews: 4.4 4.4 out of 5 stars (31)


Item Weight: 14 ounces


Manufacturer: FZONE


Item model number: 45g


Date First Available: March 25, 2025


Item Package Dimensions L x W x H: 7.09 x 4.06 x 1.65 inches


Brand Name: FZONE


Directions: 1


Warranty Description: 1


Model Name: Cartridges


Color: silver


Included Components: Cartridges


Specific Uses for Product: Indoor


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Feb 13

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


  • Amazing
Super clutch and easy to use
Reviewed in the United States on December 12, 2025 by felix rosado gonzalez

  • Perfect for 5 gallon
I have bought these co2 cartridges several times and everyone has worked perfectly everytime. Works great in my Fzone co2 regulator
Reviewed in the United States on November 27, 2025 by Jenny Jenny

  • Good for my 6 gallon
Works well for my 6 gallon
Reviewed in the United States on December 3, 2025 by sam

  • Perfect for nano tanks
At a rate of around 1 BPS turned on for 8 hours per day, one cartridge will last roughly one month. So around ten bucks per month isn’t too bad. Of course larger CO2 tanks will be more cost efficient but if you’re limited in space and/or want something compact, the 45g cartridges are a nice compromise. ... show more
Reviewed in the United States on September 25, 2025 by T. Tozawa

  • Great
I have been running this in my 3 gallon tank for about 2 months at one bubble per 8-10 seconds. Pressure is still in the green, it’s an inexpensive and compact co2 setup
Reviewed in the United States on September 24, 2025 by dp

  • Good
2bps for 20 long heavy planted, two cartridges last me 1 month.
Reviewed in the United States on September 26, 2025 by Nizzysan

  • Best co2 ever
This is the best co2 so far for my tanks 10gallon,7gallon and 5 gallon thank you fzone
Reviewed in the United States on September 22, 2025 by Carlo Calina Carlo Calina

  • Fzone co2
Great for the fzone co2 kit. 1 tank lasted me almost a month running 6-8 hours per day 5 days a week. 2 bpm
Reviewed in the United States on August 22, 2025 by Matt

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