Used 20 lb CO₂ Tank | Brewing & Aquarium Applications

Used 20 lb CO₂ Tank | For Kegerators, Aquariums & More

Affordable, Food-Grade CO₂ Tank for Brewing and Beyond

Our used 20 lb CO₂ tanks are a cost-effective solution for homebrewers, aquarists, and hobbyists who need reliable food-grade CO₂. These aluminum tanks are inspected, tested, and ready for use in kegerators, keezer setups, and draft systems. Beyond brewing, they’re also popular for freshwater aquariums to promote plant growth and in saltwater tanks for calcium reactors.

All used tanks are sold empty and can be refilled locally. For customers near our Vista, CA shop, we also offer a convenient 20 lb CO₂ exchange program to swap your empty tank for a freshly filled one.

Key Features:

• Tank Size: 20 lb capacity
• Material: Lightweight, corrosion-resistant aluminum
• Applications: Kegerators, draft systems, freshwater aquariums, saltwater calcium reactors
• Condition: Used, fully tested and certified
• Shipping Note: All CO₂ tanks ship empty. Filled tanks cannot be shipped.

Why Choose a Used 20 lb CO₂ Tank?

• Cost-Effective: Save money compared to brand-new tanks
• Versatile Use: Ideal for brewing, aquariums, and general CO₂ applications
• Exchange Option: Local customers can add the 20 lb CO₂ exchange for a filled tank

Important Shipping Information

All CO₂ tanks, new or used, ship empty. Filled tanks are not eligible for shipping. Our 20 lb CO₂ exchange service is available for local pickup customers only.