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12 Gram CO2 Cartridges

12 Gram CO2 Cartridges

Best price now

$8.99at AmazonObserved at 5:30 AM

Prices are checked against each store and labelled with when.

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Our take on the 12 Gram CO2 Cartridges

These are standard 12-gram non-threaded CO2 cartridges, sold in a pack of 25. They power the Spider Net Gun and also fit drain guns such as the Drain Kat for clearing clogged condensate lines. The listed best new price is $8.99 at Amazon as of November 4, 2026, and only one store prices them new, so there is little price competition to compare against.

Best forSpider Net Gun ownersAnimal control and rescue teams
HVAC techs clearing condensate lines
Buyers stocking up on spares
Pros
  • Standard 12 g non-threaded size fits the Spider Net Gun and Drain Kat
  • Pack of 25 covers multiple uses before restocking
  • Steel body, recyclable
  • 720–780 PSI working pressure suits net guns and drain guns
Cons
  • Only one store lists a new price, so no real price comparison
  • CO2 cartridges can't ship to some countries outside the US and Canada
  • Single-use; you need spares on hand
  • Pressure drops in cold weather, weakening each shot

12 Gram CO2 Cartridges prices at every store

  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $8.99Observed at 5:30 AM
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Also available at

  • TheNetGunStore.comCheck price at TheNetGunStore.com

12 Gram CO2 Cartridges price history

Lowest price we've seen: $8.99 on Nov 4 at Amazon. Tracked across 1 store since Nov 4.

What reviewers say

Buyers of the Spider Net Gun report the cartridges work reliably and praise fast, safe operation. Animal control users say the setup saved them hours and helped rescue injured geese and dogs from hard-to-reach spots.

Pros
  • Fast, safe and reliable
  • Saved an animal control team countless hours
  • Useful for rescuing injured geese and dogs
  • Works well for safely capturing stray dogs

From TheNetGunStore.com

  • 12 gram, non-threaded CO2 cartridges
  • Powers the Spider Net Gun safely
  • Buy extra to have on hand
Shipping
Free shipping on all orders; allow 12-14 days for shipping; ships internationally, but some countries outside the US and Canada do not allow CO2 to be shipped i

About the 12 Gram CO2 Cartridges

The Spider Net Gun is powered safely by using 12 gram, non-threaded CO2 cartridges. Make sure to purchase extra to have on hand!

*Note: Some countries outside of the US and Canada do not allow us to ship CO2 internationally. If this is the case, we will email you after your purchase and let you know. We will help you locate where to get them in your country if needed.

What buyers say

Buyers like
  • Fast, safe and reliable; saved an animal control team countless hours
  • Useful for rescuing injured geese and dogs from hard-to-reach areas
  • Works like a charm for safely capturing stray dogs

Specifications

Cartridge Capacity
12gSource
Cartridge Pressure
720-780 PSISource
Cartridge Material
MetalSource
Gas Type
CO2Source
Maximum Diameter
18.90mmSource

Questions and answers

Are these cartridges threaded or non-threaded?
Non-threaded. They are the standard 12-gram style the Spider Net Gun uses, so don't buy threaded cartridges for that gun.
Will they fit a Drain Kat drain gun?
Yes. The listing names the Drain Kat and Charles Gallo drain guns as compatible, and 12-gram cartridges are the common size for these tools.
How many cartridges come in a pack?
25 per pack. A full case holds 500.
Can these ship outside the US and Canada?
Some countries don't allow CO2 cartridges to be shipped in. The store emails you after purchase if that applies and helps you find a local source.
Is $8.99 a good price for 25 cartridges?
At about 36 cents per cartridge it is in line with typical 12-gram CO2 pricing. Only one store lists a new price as of November 4, 2026, so there is nothing cheaper to compare against.
Do they lose power in cold weather?
Yes. CO2 pressure drops as the cartridge cools, so shots are weaker in cold conditions. Keep spares at room temperature before use.
Where is the 12 Gram CO2 Cartridges cheapest?
At Amazon, for $8.99, as of our latest check.
What do buyers say about the 12 Gram CO2 Cartridges?
Buyers like: Fast, safe and reliable; saved an animal control team countless hours; Useful for rescuing injured geese and dogs from hard-to-reach areas; Works like a charm for safely capturing stray dogs.
Where can I buy the 12 Gram CO2 Cartridges?
2 stores we checked sell it, including Amazon, TheNetGunStore.com.

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Pack Quantity
Pack of 25Source
Case Quantity
Case of 500Source
Maximum Pressure
800 psi
Pressure Range
800 psi
Type
Central Air & Heat Components
Subtype
Cartridges
Style
Standard
Intended Use
Clearing clogged drains, Cleaning out A/C condensate lines
Application Area
HVAC
Solution For
Clogged drains
Compatible Brands
Charles Gallo
Compatible Devices
Drain Gun
Compatible Models
Drain Kat
Compatible Product Type
HVAC/R Tool
Height
8 in
Length
2.75 in
Weight
1.6 lb
Width
1.75 in
Primary Function
Clear the drain line