Why Do So Many Buyers Choose the Wrong CO2 Cartridge Size?

Introduction: One Small Cartridge, One Big Mistake

CO2 cartridges may look simple, but choosing the wrong size can cause major headaches for buyers and their customers. From misfiring airguns to failed carbonation in soda makers, a mismatch between device and cartridge can lead to poor performance, equipment damage, or even safety risks. So why do so many professionals still make this mistake?

Let’s break down the most common reasons and how to avoid them.

1. They Focus on Weight, Not Application

Many buyers assume that the cartridge weight (like 12g or 16g) is the only factor that matters. In reality, the same cartridge weight can serve very different industries:

• 16g for bicycle tire inflators
• 16g for beer kegs
• 16g for drain cleaning guns

But each application has different pressure, thread, and gas purity requirements.

Tip: Always match cartridge size and usage scenario.

2. They Overlook Thread Types and Valve Styles

Not all cartridges are created equal. Even if the weight is correct, mismatched threading or valve types (e.g., threaded vs. non-threaded, puncture-style vs. controlled release) can make a cartridge completely unusable with your device.

Example: An 88g CO2 cartridge for an air rifle is usually threaded; a soda maker version might not be.

3. Lack of Clear Specs from End-Device Brands

Some device manufacturers don’t specify exact cartridge compatibility, leaving buyers to guess. This increases the chances of using the wrong size or type, especially for custom or niche equipment.

Solution: Work with a cartridge supplier who understands device-side requirements.

4. Confusing Model Names or Inconsistent Terminology

One brand’s “compact 12g” might differ slightly in size or pressure from another’s. Without standardized naming conventions, it’s easy to order the wrong product based on a name alone.

5. Price-First Buying Without Technical Review

Many procurement agents or distributors default to the cheapest option with the same gram count. But cheaper cartridges may lack required certifications, threading compatibility, or gas purity for certain industries like beverages or life-saving equipment.

Tip: Saving $0.05 per unit isn’t worth a failed batch or angry client.

6. Confusing CO2, N2O, and N2 Cartridges

They may look similar, but CO2, nitrous oxide (N2O), and nitrogen (N2) are used in completely different applications:

• CO2: Bicycles, airsoft, beer
• N2O: Whipped cream, infusions
• N2: Nitro coffee, packaging

Mixing them up can cause dangerous pressure mismatches or even legal violations, especially when food-grade gases are involved. For example, the FDA outlines specific safety requirements for CO2 in food applications.

7. No Access to Clear Sizing Guides

Many cartridge suppliers don’t offer easy-to-understand charts or application guides. Buyers are left comparing part numbers with no real-world examples.

To reduce confusion, we recommend reviewing compatibility details directly from trusted equipment makers, like the Crosman Airgun CO2 compatibility guide.

How to Choose the Right CO2 Cartridge

Here’s a quick reference chart to help match the right size with your application:

Final Advice: Partner with Experts

Alizee has been supplying CO2 and specialty gas cartridges since 1999. We help our partners avoid costly mistakes by providing:

• Custom compatibility consulting
• Free size and usage guides
• OEM branding and packaging

Need help choosing the right CO2 cartridge for your application? Contact us today or browse our full product catalog to get started.

Get It Right the First Time.

Choosing the right CO2 cartridge size isn’t just a technical decision—it’s the difference between success and costly rework. With the right supplier, you can make better decisions faster, avoid errors, and build trust with your customers.