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$1.05 a cartridge, the cheapest gas on this shelf

Asura AC16-30

Thirty threaded 16-gram food-grade CO2 cartridges — the lowest price per cartridge on this shelf.

Asura 16 gram threaded CO2 cartridges, thirty count box

Asura AC16-30

Thirty threaded 16-gram food-grade CO2 cartridges — the lowest price per cartridge on this shelf.

Type
Disposable CO2 cartridge — THREADED
Thread
3/8 inch with 24 threads per inch
Charge
16 g (0.6 oz)
Quantity
30
Price per cartridge
$1.05, on the published price and count — the lowest here
Gas
Pure food grade
Neck
Standard size
Compatibility
All 16 g (0.6 oz) threaded CO2 bike inflators, per the maker
Pressure
Not stated by the maker
Shelf life
Not stated by the maker
Warranty
Not stated by the maker
Amazon reference
B01AB3DQEW
EAN
0755717532510
  • A dollar and five cents a cartridge, the cheapest CO2 on this shelf and 61% of what the six-pack charges
  • The full thread specification — 3/8 inch, 24 TPI — on a five-line listing with no filler
  • No pressure, no shelf life, no certification and no warranty, where the ICO 50-pack publishes all four for 13 cents more each

Best for: The cheapest threaded CO2 on this shelf, bought by the box

≈ $32
Check price on Amazon

Specifications

Type
Disposable CO2 cartridge — THREADED
Thread
3/8 inch with 24 threads per inch
Charge
16 g (0.6 oz)
Quantity
30
Price per cartridge
$1.05, on the published price and count — the lowest here
Gas
Pure food grade
Neck
Standard size
Compatibility
All 16 g (0.6 oz) threaded CO2 bike inflators, per the maker
Pressure
Not stated by the maker
Shelf life
Not stated by the maker
Warranty
Not stated by the maker
Amazon reference
B01AB3DQEW
EAN
0755717532510

What the maker puts in writing

  • 16 gram CO2 cartridges filled with pure food grade gas
  • 3/8” thread with 24 threads per inch
  • 30 pack in box
  • Instantly refill a flat tire with a CO2 inflator
  • Standard neck size; works with all 16 gram threaded CO2 bike inflators

A dollar and five cents

The cheapest gas on this shelf, by the makers’ own prices and counts.

Against $1.18 for ICO’s certified fifty, $1.35 for Asura’s own twenty, $1.80 for ICO’s unthreaded ten and $2.67 for TrailKeg’s six.

What the thirteen cents buys elsewhere

ICO’s threaded 50-pack is $1.18 a cartridge and publishes a neck length, a thread, a shelf life, EU food standards and TÜV certification.

Asura’s is $1.05 and publishes a weight and a thread.

Both are 16 g (0.6 oz) of food-grade CO2 on the same fitting. If you are filling a growler every week, the difference over thirty cartridges is three dollars and ninety cents.

Availability

Read on the day this page was built: $32 at the American Amazon shop.

Read from Keepa on the day this page was last revised; stock and price both move without notice.

Prices quoted in this text were read on 2026-10-04. The live price is at the top of the page.

What readers ask us

Is it the best buy here?

On price per cartridge, yes: $1.05 against $1.18, $1.35, $1.80 and $2.67. On information published, no — the ICO 50-pack gives you TÜV certification, EU food standards, an 11 mm (0.43 in) neck length and a 5-year shelf life for $1.18.

How long will thirty cartridges keep?

Not stated. A sealed steel CO2 cartridge stored dry generally keeps for years, and the ICO threaded cartridge on this shelf publishes five. Asura publishes nothing, so there is no figure to rely on.

Threaded, so which dispensers?

Any that screws in a 16 g (0.6 oz) cartridge on a 3/8-24 thread, which is the standard. If your dispenser pierces a smooth cartridge instead, you need the unthreaded boxes on this shelf.

More beer keg & capsule refills

  • Asura 16 gram threaded CO2 cartridges, twenty count box

    Asura AC16-20

    Twenty threaded 16-gram food-grade CO2 cartridges on a 3/8-inch 24-TPI thread.

    Type
    Disposable CO2 cartridge — THREADED
    Thread
    3/8 inch with 24 threads per inch
    Charge
    16 g (0.6 oz)
    Quantity
    20
    Price per cartridge
    $1.35, on the published price and count
    Gas
    Pure food grade
    Neck
    Standard size and threads
    Compatibility
    All 16 g (0.6 oz) threaded CO2 bike inflators, per the maker
    Pressure
    Not stated by the maker
    Shelf life
    Not stated by the maker
    Warranty
    Not stated by the maker
    Amazon reference
    B079ZRRG9W
    EAN
    0755717532671
    • Publishes the thread properly — 3/8 inch, 24 threads per inch — rather than calling it universal
    • Five short bullets that are a specification and nothing else: weight, thread, count, use, fit
    • The same maker sells thirty for $31.50, which is $1.05 a cartridge — this box is thirty cents a cartridge dearer

    Best for: Nothing the 30-count box of the same cartridge does not do better

    ≈ $27
    Check price on Amazon
  • ICO 16 gram non-threaded food grade CO2 cartridges, ten pack

    ICO ICOC1610NT

    Ten unthreaded 16-gram food-grade CO2 cartridges at about 900 psi, guaranteed for two years.

    Type
    Disposable CO2 cartridge — UNTHREADED
    Charge
    16 g (0.6 oz) of CO2 at approximately 60 bar / 900 psi
    Quantity
    10
    Price per cartridge
    $1.80, on the published price and count
    Purity
    100% pure carbon dioxide — odorless, colourless, non-flammable; no minerals, salts or solids
    Material
    High-quality recyclable steel
    Named compatible
    GrowlerWerks uKeg 128, Biermaxx, Mini Keg Party Star Deluxe System and others
    Also for
    Beer machines, air dusters, CO2 tire inflators and other 16 g (0.6 oz) unthreaded devices
    No tank needed
    Replaces a tank and regulator for portable dispensing
    Guarantee
    Two years
    Amazon reference
    B006JQ3ET8
    EAN
    0880651000266
    • The only cartridge on this shelf that publishes its pressure — approximately 60 bar, 900 psi — which is what a dispenser is actually being given
    • Names three real appliances it fits: the GrowlerWerks uKeg 128, the Biermaxx and the Mini Keg Party Star Deluxe, where every other listing says "universal"
    • A dollar eighty a cartridge, the most expensive of the two unthreaded options — RedRock’s 30-pack is $1.17

    Best for: A uKeg, a Biermaxx or a Party Star — the appliances this listing names, with a pressure figure attached

    ≈ $18
    Check price on Amazon
  • ICO threaded 16 gram CO2 cartridges, fifty pack

    ICO Not stated by the maker

    Fifty threaded 16-gram CO2 cartridges made in Europe to EU food standards, TÜV certified, with a five-year shelf life.

    Type
    Disposable CO2 cartridge — THREADED
    Thread
    3/8"-24 TPI, precision engineered
    Neck length
    11 mm (0.43 in), stated to seal without jamming or leaking
    Charge
    16 g (0.6 oz)
    Quantity
    50
    Price per cartridge
    $1.18, on the published price and count
    Purity
    100% pure CO2 manufactured to EU food standards; stated safe for kitchen use with no metallic aftertaste
    Certification
    TÜV certified, manufactured in Europe in a specialized facility
    Testing
    Each canister tested for pressure consistency
    Sealing surface
    Flat, to prevent damage to an inflator’s O-rings
    Size and weight
    3.5 in long, 2 oz
    Shelf life
    5 years
    Tire figures
    A road tire to 100 psi or an MTB tire to 40 psi, per the maker
    Amazon reference
    B0CFYFZDVR
    EAN
    0880651005674
    • The only cartridge on this shelf with a certification: TÜV, made in Europe, to EU food standards, with each canister tested for pressure consistency
    • The only one that publishes a neck length (11 mm (0.43 in)), a shelf life (5 years), a length (3.5 in) and a weight (2 oz)
    • Titled and written for cyclists, with the beverage use confined to one bullet

    Best for: The best-documented CO2 on this shelf, for a kitchen and a bike both

    ≈ $59
    Check price on Amazon

Elsewhere in the spares drawer

  • bigjvbfv flower design ice mold champagne bucket with stainless steel shell

    bigjvbfv Champagne Ice Mold Bucket 001

    A stainless steel shell with a plastic base and an acrylic ice mold that freezes a decorated ice bucket in 24 hours.

    Type
    Ice bucket mold — freezes a decorated ice barrel
    Parts
    Stainless steel shell, plastic base, acrylic ice mold
    Freezing time
    24 hours
    Release
    Warm water into the middle of the mold, wait 5–10 minutes
    Clearest ice
    Use distilled water, as advised by the maker
    Decoration
    Flowers, fruit or other decorations
    Bottles and drinks
    Champagne, wine, whisky, vodka, cocktails
    Other use
    Doubles as a caviar cooler, per the maker
    Capacity
    Not stated by the maker
    Size and weight
    Not stated by the maker
    Amazon reference
    B0DZ2FRRMQ
    EAN
    5499228783645
    • The only flower-ice mold here that publishes both timings — 24 hours to freeze and 5 to 10 minutes of warm water to release
    • Advises distilled water for the clearest result, which is the one piece of real technique in the listing
    • Two and a quarter times the price of the Trademark Innovations mold, for the same stainless shell and the same effect

    Best for: The flower-ice bucket done with the timings written down and acrylic in the mold

    ≈ $40
    Check price on Amazon
  • FDDAI clear ice ball maker with a 2.5 inch crystal clear ice sphere

    FDDAI Not stated by the maker

    A two-pack insulated silicone sphere mold making 2.5-inch clear ice balls by directional freezing.

    Type
    Insulated sphere mold, 2-pack
    Ball size
    A true 2.5 inches
    Method
    Directional freezing — air and impurities pushed downward
    Water
    Cooled boiled water at about 40 °C (104 °F) / 104 °F, as stated by the maker
    Freezing time
    20 hours or more
    Construction
    One-piece silicone over a lightweight foam structure
    Release
    Rest briefly, peel downward — no soaking, tapping or forcing
    Size
    114 × 25 × 150 mm (4.49 × 0.98 × 5.91 in)
    Weight
    Not stated by the maker
    Clarity
    Claimed as similar to a high-end cocktail bar; no measure exists for this
    Amazon reference
    B0CN3BQG44
    EAN
    0797430967248
    • The only listing on this shelf that publishes the method, the water temperature and the freezing time — 104 °F, 20+ hours
    • Explains why the ice comes out clear rather than only promising that it does: directional freezing drives bubbles down out of the sphere
    • Twenty hours and water you have to boil and cool first — this is the most work of any mold here

    Best for: One clear 2.5-inch sphere in a tumbler, for someone willing to plan a day ahead

    ≈ $30
    Check price on Amazon
  • KitchFort black silicone large ice cube tray with lid, two pack

    KitchFort BLACK-ICT-P2

    Two stackable silicone trays making twelve 2-inch slow-melting cubes, with lids, and dishwasher safe.

    Type
    Silicone cube tray with lid, 2-pack
    Cubes
    12 large cubes in one go across the two trays
    Cube size
    2 inches
    Lid
    Prevents spills, blocks freezer odors, keeps the ice clean
    Stacking
    Trays stack with the lids on
    Cleaning
    Dishwasher safe
    Release
    Separate cavities; twist and push from the bottom
    Material
    Food-grade BPA-free silicone, freezer friendly
    Other uses
    Baby food, purées, sauces and portions, as stated by the maker
    Size
    180 × 114 × 53 mm (7.09 × 4.49 × 2.09 in)
    Weight
    141 g (5 oz)
    Amazon reference
    B0DSLN9GJD
    EAN
    5065021083024
    • Dishwasher safe, stated — the only mold on this shelf that says so, and a silicone tray that has frozen stock needs it
    • The lightest mold here at 141 g (5 oz), half the Xomoo tray, which matters when a stack of four is coming out of the freezer
    • The same twelve 2-inch cubes as the $7.29 Xomoo tray, for $2.70 more, without the steel ring or the volume scale lines

    Best for: The same twelve big cubes as the entry tray, with the dishwasher claim and the lower weight

    ≈ $10
    Check price on Amazon

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