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CO2 Cartridge, 12 g, 3/8 Thread, Steel Cylinder for Life Bracelets and Tyres
$8.99
Steel CO2 cartridge of 12 g with a 3/8 thread, for life bracelet and buoyancy systems and for bicycle tyre inflation, supplied in bulk cartons.
Shipping & Delivery
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Standard courier delivery
Tracked door-to-door delivery from our Shenzhen warehouse.
6-25 business days, depending on destination
From $7.30 · Free shipping from $99 (by order weight)
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Express courier delivery
DHL, FedEx or UPS will deliver to the specified address.
2-8 business days, depending on destination
From $13.90
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12-month warranty
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30-day returns
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Product Attributes
| Type | CO2 cartridge |
| Capacity | 12 g |
| Thread | 3/8 |
| Material | Steel |
Packaging Information
Unit weight and carton dimensions for every model in this listing.
| Model | Weight (lb) |
|---|---|
| Unit | 0.132 |
Figures are measured per single unit. Carton quantities and mixed pallets are available on request.
Twelve grams sits between the bracelet-sized 8 g and the tyre-sized 16 g, and it is the size used in belt-pack buoyancy aids and in compact tyre inflators. The 3/8 thread is the same fitting as the rest of this range. Made by Chuangbinuo.
12 g CO2 Cartridge: Overview
The charge suits a small chamber or a single bicycle tyre. Life bracelets and compact buoyancy aids are built around cylinders in this class, and so are the small inflator heads sold for road bikes.
The cylinder is about 83 mm by 18.5 mm, the slim pattern that fits inside a belt pack or a jacket pocket. The thread is 3/8.
As with every cylinder in this range, the thread and the length decide whether it fits. Match the cylinder to the mechanism rather than to the nearest capacity.
Key Features at a Glance
- 12 g capacity – belt packs, compact jackets and bicycle tyres.
- 3/8 thread – fits life bracelet and inflator heads.
- Slim body – about 83 x 18.5 mm.
- Steel cylinder – welded base, as listed by the supplier.
- Small volume systems – buoyancy aids and compact kits.
- Bulk packing – supplied in cartons.
Fitting and Use
Life bracelets and compact aids
Fit the cartridge by hand and check that the cap or lever closes without loading the cylinder. A cylinder that is slightly long will hold the mechanism open.
Replace the cylinder at each service and after any firing, and check the seal at the same time.
Bicycle tyres
A 12 g cylinder will inflate a road tyre to riding pressure in one go. For a larger tyre, carry two cylinders or step up to the 16 g or 25 g size.
Keep the inflator head tight on the cartridge until it is used, because a part-discharged cylinder cannot be reused.
Storage and Shipping
Storage
Store in a dry place, out of direct sun and away from heat. Damp storage is what marks the neck of the cylinder.
Do not puncture, crush or heat a cylinder, whether or not it appears empty.
Shipping
Pressurised cylinders are regulated goods in most markets. Check the destination rules before ordering in volume, and tell us the port so the shipment is declared correctly.
Cartons are packed for bulk handling and can be ordered as they are.
Specifications
| Type | CO2 cartridge, steel cylinder |
| Capacity | 12 g |
| Thread | 3/8 |
| Working pressure | 5.6 MPa as listed by the supplier |
| Nominal size | About 83 x 18.5 mm |
| Use | Life bracelets, buoyancy aids and bicycle tyres |
| Packed weight (base unit) | 0.132 lb (0.06 kg) |
| Country/region of origin | China |
Packaging Information
| Model | Weight (lb) |
|---|---|
| Unit | 0.132 |
Cylinders ship in cartons. Check the rules for pressurised cylinders at the destination before ordering in bulk.
Where It Is Used
Life bracelets and compact buoyancy aids, belt-pack marine safety systems, and bicycle tyre inflation where a small cylinder is carried instead of a pump.
Choosing the Right Item
- Match the thread and the capacity to the equipment: the 3/8 cylinders suit common inflator heads and smaller life jackets, and the M16 x 1.5 cylinder suits the larger jacket and raft systems.
- Buy the capacity for the job. An 8 g cylinder will inflate a bracelet or top up a tyre, while a car tyre or a tubeless bicycle tyre needs 38 g or more.
- For a workshop, buy a power rating above the job: a 60 W iron heats a joint quickly and has reserve for a connector, which a 30 W iron does not.
- Order cartons rather than singles where the consumable is used regularly, and check the shipping declaration for pressurised goods at the same time.
Care and Maintenance
Keep cylinders and consumables dry and out of direct sun, and check the rules that apply to pressurised goods before shipping in bulk.
Check threads against the head, mechanism or fitting before ordering: a 3/8 cylinder will not fit an M16 mechanism, and the two look similar in a photograph.
Unplug tools when they are not in use, keep cables away from hot parts, and work in a ventilated area where flux or gas is involved.
OEM and Bulk Supply
The supplier makes to order, prints own-brand packaging and can supply private-label cartons, with OEM and ODM support for welding and inflation accessories.
Frequently Asked Questions
Is this a single item or a set?
It is supplied as described above – CO2 cartridge, steel cylinder. One unit per order.
What is it made of?
Key material: Steel. Other specifications are listed in the Specifications table above.
What is it used for?
Life bracelets and compact buoyancy aids, belt-pack marine safety systems, and bicycle tyre inflation where a small cylinder is carried instead of a pump.
Can I buy in bulk or with my own branding?
Yes. Own-brand printing and private-label cartons are available on request, with OEM and ODM support.
Summary
Twelve grams sits between the bracelet-sized 8 g and the tyre-sized 16 g, and it is the size used in belt-pack buoyancy aids and in compact tyre inflators.
Typical use: Life bracelets and compact buoyancy aids, belt-pack marine safety systems, and bicycle tyre inflation where a small cylinder is carried instead of a pump.
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