Choosing the right CO2 tank for paintball guns influences performance, efficiency, and downtime. The following selection focuses on commonly used CO2 tanks and compatible configurations, including prefilled cartridges, refillable aluminum tanks, and multi-pack options. Each option is evaluated for capacity, portability, and compatibility with standard markers, helping players maintain consistent velocity and fewer field stops.
Summary of selected products:
| Product | Brand | Capacity | Notes |
|---|---|---|---|
| JT Paintball JT 88/90gram CO2 Tank – Prefilled – 3 Count | JT | 88 g each | Prefilled, compact, quick swaps |
| Maddog 20 Oz Refillable Aluminum CO2 Paintball Tank | Maddog | 20 oz | Refillable, lightweight, long life |
| JT Paintball 88G Prefilled CO2 Cylinders – 6 Pack | JT | 88 g each | Ready-to-use, multi-pack |
| Maddog 20 oz CO2 Paintball Tanks – 3-Pack | Maddog | 20 oz | Ships empty, multiple-tank set |
| Maddog 20 oz CO2 Paintball Tanks – 5-Pack | Maddog | 20 oz | Ships empty, large supply |
JT 88/90g CO2 Tank, Prefilled, 3 Count

These compact 88-gram CO2 cartridges are widely used for quick reloading during paintball sessions. The triple-pack provides immediate swaps without field refills, making them ideal for players who value rapid turnaround between games. The included cartridges can also be used with threaded 88g adapters, increasing versatility for airsoft or other CO2-powered devices. The prefilled nature reduces on-site setup, supporting consistent shot velocity across matches. Handling is straightforward, with standard threading compatible with many markers and accessories.
Key considerations:
- Capacity and weight: 88 g per cartridge keeps markers balanced for quick swaps.
- Compatibility: Works with threaded adapters and common markers; verify thread type for your gun.
- Portability: Ideal for back-up tanks that fit in standard harness slots or pockets.
- Safety: Prefilled units require proper handling and secure storage to prevent leaks.
Maddog 20 Oz Refillable Aluminum CO2 Tank

Refillable aluminum tanks offer a balance between weight, durability, and economy. With a 20-ounce capacity, this Maddog tank can power numerous games before needing a fill, and it’s compatible with all standard CO2-powered markers. The product emphasizes long-term value, with a guaranteed fresh manufactured date and a 5-year re-test cycle, meeting safety and performance standards. Note that tanks ship empty and must be filled at a certified facility before use, aligning with transportation regulations.
Key considerations:
- Refillability: Reusable tanks reduce long-term costs and waste.
- Durability: Aluminum construction provides a lightweight yet robust design for game-day reliability.
- Safety and compliance: DOT and TC certifications and proper hydrotesting timing.
- Capacities impact: Plan fills to maximize total shots per field session.
JT 88G Prefilled CO2 Cylinders – 6 Pack

This six-pack delivers immediate power for players who prefer ready-to-use CO2 cylinders. Designed for universal compatibility, these cylinders are ideal for workflows that require minimal downtime between rounds. The included prefilled format reduces field setup complexity, letting players focus on strategy and execution rather than logistics. As with all prefilled CO2 products, proper storage and handling are essential to maintain pressure and prevent leaks.
Key considerations:
- Ready-to-use convenience: Eliminates the need to fill on-site.
- Multi-pack value: Ensures you have ample supply during tournaments or long play sessions.
- Compatibility: Confirm marker compatibility and adapter needs for your frame.
- Portability: Small form factor fits in typical vest or belt pouches.
Maddog 20 oz CO2 Paintball Tanks – 3-Pack

This set provides a practical balance of quantity and portability. Each 20-ounce tank ships empty to comply with transport laws, ready to be filled at a field or store. The 3-pack approach minimizes downtime between games, making it suitable for teams or players who rotate tanks frequently. The aluminum construction is typical for paintball tanks, offering a sturdy and relatively lightweight option that’s compatible with standard CO2-powered markers and accessories.
Key considerations:
- Shipped empty: Plan for field or shop fills to maximize playtime.
- Throughput: Expect 800-1000 shots per fill depending on marker and temperature.
- Long-term value: Multiple tanks reduce wait times during long sessions.
- Material: Aluminum design supports durability without excessive weight.
Maddog 20 oz CO2 Paintball Tanks – 5-Pack

This larger set is designed for teams and leagues where multiple players share gear or where players want a ready-to-swap system across sessions. Each tank ships empty and needs filling before use, ensuring safe transport. The five-pack keeps your field kit stocked for extended play, with the same 800-1000 shots per fill expectation. The sturdy aluminum profile aligns with standard paintball markers and ensures consistent performance across rounds.
Key considerations:
- Pack value: More tanks means fewer refill breaks and more field time.
- Filling logistics: Ensure access to a reliable refill point to maximize shooting time.
- Marking standards: Confirm hydrostatic test dates and DOT/TC compliance for safety.
- Weight management: Plan transport options to accommodate multiple tanks safely.
Buying Guide
When selecting CO2 tanks for paintball guns, consider capacity, weight, and refill logistics. CO2 tanks come in small, portable cartridges and larger 20-ounce options. Prefilled cartridges offer instant play but require a constant supply chain, while refillable tanks give long-term value with proper maintenance and hydro testing. For teams, multi-pack options reduce downtime; for solo players, compact 88-gram cartridges support quick swaps between rounds.
Key purchase considerations:
- Marker compatibility: Verify thread type and connection standards for your gun and regulator.
- Fill availability: Identify local fields or hobby shops that provide CO2 fills for a smooth game flow.
- Regulatory compliance: Ensure tanks meet DOT/TC standards and follow shipping rules, especially when transporting empty versus filled units.
- Weight and balance: Lighter tanks enhance maneuverability but may require more frequent swaps; heavier tanks offer longer play but affect handling.
- Cost of ownership: Compare price per shot and refill frequency to determine long-term value across single, multi-pack, and refillable options.
- Temperature sensitivity: CO2 performance can vary with ambient temperature; plan for field conditions to maintain velocity consistency.
Overall, the right CO2 tank setup balances ease of use, field readiness, and reliability. For players prioritizing immediate play, prefilled cartridges are valuable. For bulk play and field teams, refillable and multi-pack options provide ongoing capacity with manageable upkeep. The listed selections span compact cartridges to full-size tanks, offering options for different play styles and competition formats.