
OEM / ODM Customizable 2kg Aluminum CO2 Cylinder
| Reliable and recyclable CO2 gas supply solution
| Specially designed for commercial aquariums and beverage industries
Globally certified security guarantee
Each gas cylinder is strictly manufactured and tested in accordance with the international standard DOT-3AL/ISO9809, and authoritative compliance documents are provided. We are well aware that for you, safety is not only the bottom line but also a manifestation of brand reputation and corporate responsibility, enabling you to face any audits and inspections with confidence.
The recyclable filling design
It significantly reduces the total cost of long-term use. And it is made of high-strength 6061-T6 aluminum alloy and seamless forging process, with a design life of up to 30 years. Compared with one-time solutions or low-quality alternatives, your one-time investment can bring reliable charging services for decades and thousands of times, reducing the cost per use to an extremely low level.
Standard interfaces and precise capacity
It ensures the stable operation of the system. Equipped with standard CGA320 valves, it can be seamlessly integrated with mainstream beverage machines and aquarium gas supply systems on the market. The precise 2kg CO2 filling capacity and 2.0L water volume design provide you with a stable and predictable gas supply cycle, facilitating inventory management and maintenance plan formulation.
Support OEM/ODM deep customization
It becomes a part of your brand. We not only offer standard products, but also can provide you with exclusive color spraying, logo etching, valve specification adjustment and customized packaging services according to your needs. Transform gas cylinders from back-end devices into reliable partners that carry your brand image.
The 2kg CO2 cylinder for aquarium can replenish carbon dioxide to aquatic plants.
Those of us who have raised fish in aquariums understand the significance of keeping all aspects of the aquarium environment in balance. Our aquatic plants and fish may struggle to survive without adequate levels of oxygen and carbon dioxide. Please contact us right away if you need an aquarium CO2 cylinder to keep your plants in the best possible condition. Our CO2 cylinders come in a variety of sizes, but this 2kg CO2 cylinder for aquarium is the best seller because it is not bulky, it is unobtrusive when placed in front of the aquarium, and the brushed metal look is elegant.
Product Specification
|
Water volume |
6.55 lb / 2.97 L |
|
Material |
Aluminum Alloy 6061-T6 |
|
Valve |
CGA320 |
|
Service Pressure |
2415 psi / 166.6 Bar |
|
Capacity |
4.4 lb / 2 kg |
|
Diameter |
4.37" / 111 mm |
|
Length |
18.62" / 473 mm |
|
Certification |
TPED |

You come up with ideas, we realize them, a customized revolution from "manufacturing" to "intelligent manufacturing".
Visual customization is not limited to the Logo
From Pantone spot color spraying, gradient colors to personalized shoulder bands, your brand colors can be precisely reproduced on the bottle.
Functional customization delves into the core
Global standard valve interfaces such as CGA and so on can be customized, or dedicated valves can be exclusively adapted to your equipment.
Rapid response sample process
After receiving your request, we will provide high-precision physical samples within 7 to 10 working days to ensure that the design intent is perfectly understood and accelerate the product launch cycle.
Features
Aluminum carbon dioxide cylinders are lighter in weight than stainless steel CO2 cylinders and have several advantages: Flat bottom for easy standing; Vertical storage; Corrosion resistant (no rust)

Target industry solutions :
Commercial aquariums and Marine parks:
CO2 replenishment systems for large fish tanks.
Catering industry:
Carbonated beverage machines and draft beer machines suitable for bars, restaurants and coffee shops.
Laboratories and research institutions:
For experimental equipment that requires a stable supply of CO2.
Applications
Carbon dioxide boosts the productivity of nearly all herbs. A 300 ppm increase in carbon dioxide levels in the atmosphere would increase herbaceous plant productivity by one-third. These plants use all three major biochemical photosynthesis pathways (C3, C4, CAM). Almost all crops will be more productive as carbon dioxide levels rise in the atmosphere. They generate more shoots and tillers, thicker leaves, larger root systems, and more flowers and fruit.
WARNING
If you suspect a CO2 leak, ventilate the area, get some fresh air, and seek medical attention right away if you feel ill.

Full-process support from concept to mass production: From drawing review, prototype making to mass production and quality inspection, we offer one-stop services, significantly shortening your product launch cycle.
Flexible cooperation based on demand: Whether it's a small-batch trial order or a long-term large-scale framework purchase, we can offer competitive tiered pricing and stable inventory planning.
Cross-industry application expert: Our gas cylinder solutions have been successfully applied in fire-fighting equipment, medical devices, diving equipment and the beverage industry. We are glad to apply our cross-industry experience to solve your specific challenges.

Standard industrial packaging
Each gas cylinder is fastened with high-strength PE stretch film to prevent scratches, and an engineering plastic dust-proof protective cover is added to the cylinder mouth. Use custom corrugated cardboard or foam corners for spacing and cushioning, and pack them into sturdy thickened corrugated boxes or wooden crates. The box body is printed with clear fragile, upward-facing and moisture-proof labels.
Large-scale/long-distance transportation solution
Unitized containerization is carried out using dedicated steel pallet racks or custom wooden pallets, and reinforced with steel straps or stretch film, which is suitable for container transportation and greatly reduces the rate of cargo damage and loading/unloading time.
Recyclable packaging solutions (ESG highlights)
Provide long-term cooperative major clients with recyclable metal frames or specially designed turnover boxes to reduce one-time packaging costs and embody the concept of a green supply chain.Each cylinder must be inspected prior to shipment.
Our products are exported to many countries. Have many years of overseas shipping experience. In packaging, packaging materials such as nylon mesh, cartons and wooden pallets are usually used. And can be customized according to customer needs.


International regulations are not obstacles but rather the market access advantages that Midstar has cleared in advance for you. Our products not only meet the standards but also incorporate compliance in their design and production.
Our authentication matrix:
North American market
Fully complies with the strict standards of the DOT-3AL in the United States and the TC in Canada.
European market
Holds the EU CE-PED certification and the Transport Directive TPED certification.
Global Benchmark
The quality management system has been certified by ISO 9001:2015.

Professional service commitment
We offer comprehensive support, not just products.
Bulk purchasing plan: Based on your annual purchasing volume, we offer tiered preferential prices and flexible delivery plans.
Customized services: Supports institutional customization of gas cylinder colors and markings, facilitating asset identification and management.
Training and Guidance: Provide training on product usage and safety regulations for your team.
After-sales service and Inspection: We offer regular safety inspection services for gas cylinders or assist in contacting qualified local inspection institutions.
Call to action
To the Procurement Managers of Institutions, if you are evaluating or updating equipment, we can provide you with:
Free sample experience: Test the lightness and reliability of the product in person.
Contact our B2B sales team immediately to get a personalized quotation and solution.

FAQs
Q: Do you accept rush orders?
A: Certainly. Please contact me as soon as possible via email, Whatsapp, or Wehcat for more information.
Q: The CO2 cylinder has a date engraved on it. Is it dangerous to use it if the date has passed?
A: The date stamped on the Mid-Star aluminum CO2 cylinder is the date of manufacture or requalification. Stamped dates are similar to production dates commonly used in food and beverage manufacturing. Mid-Star cylinders are warranted for five years. If the production date is more than five years old, requalification is required before it can be used.
Q: What about payment terms? Can we get L/C?
A: We usually accept T/T, but L/C is also acceptable if necessary.












