Delivery throughout the EU

Me CO2 Refillable Bottle 2000 g – Steel CO2 Cylinder with W21.8 Valve, Filled

Trusted by 500+ aquascapers

Regular price €99,99
  • 2 kg of CO2, delivered filled
  • Refillable steel cylinde
  • Standard W21.8 × 1/14 thread
  • Safety valve and precision handwheel
  • Fits the Me CO2 Regulator Ultra

The Me CO2 Refillable Bottle is a 2000 g steel cylinder that arrives filled with pure CO2 and connects to any regulator with a standard W21.8 thread. When it runs empty you refill it instead of buying a new one.

Fast delivery (1–5 days EU)

Carefully packed and protected

Tips from real aquascapers

Description

The Me CO2 Refillable Bottle 2000 g is a steel CO2 cylinder for aquarium plant fertilisation. It is delivered tested and filled with pure CO2, and it has a standard W21.8 × 1/14 valve that fits all regulators built to DIN 477-1.

A refillable bottle costs more once and much less over time. Two kilograms of CO2 lasts for months on a typical planted tank, and a refill is far cheaper than a row of disposable cartridges.

Key specifications

Capacity 2000 g CO2
Material Steel
Valve thread W21.8 × 1/14 (DIN 477-1)
Valve Safety valve with precision handwheel
Condition on delivery Tested and filled with pure CO2

Which regulator fits?

Any aquarium regulator with a W21.8 connection, including the Me CO2 Regulator Ultra. Regulators for disposable cartridges do not fit.

Safety

  • Keep the bottle upright and secured so it cannot fall over.
  • Store it away from heat sources and direct sun.
  • Close the handwheel before removing the regulator.

Frequently asked questions

How long does 2 kg of CO2 last?
It depends on tank size and bubble rate. On a medium planted tank with CO2 on a timer, it usually lasts several months.

Where can I refill it?
At CO2 and technical gas suppliers, fire-extinguisher service shops and some beverage gas suppliers.

Is the bottle filled?
Yes. It arrives tested and filled with pure CO2.

Brand: Me  |  Category: Refillable CO2 cylinder  |  Thread: W21.8 × 1/14

  • Professional support

    Expert help when you need it

  • Delivery throughout the EU

    Delivery to all EU countries

  • Secure payment

    Fast and secure payment options

  • Easy returns

    Лесно връщане и замяна

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FAQ

What makes Aquarium Boutique different from mass-market stores?

We don't sell everything — we sell only carefully selected products, personally tested. Every item is chosen with a clear purpose: to work well and last long. You don't need to guess about quality — we've already done that for you.

Do you ship to my country?

Yes, we ship across all of Europe. For Bulgaria we work with BOX NOW and Speedy — fast and reliable home or locker delivery. For other EU countries we use international courier services.

How quickly will I receive my order?

For orders within Bulgaria, we typically deliver within 1–3 business days. For other EU countries — usually 3–7 business days depending on location.

Can I return a product if I'm not satisfied?

Yes. If something doesn't meet your expectations — contact us. We have a clear and fair return policy. Your satisfaction matters to us and we will find a solution.

Do you offer advice on product selection?

Absolutely. Our team keeps aquariums and knows the products personally. Write to us — we'll help you choose the right solution for your tank, budget and experience level.

Are your products tested and approved?

Yes. Every product in our store has gone through our personal selection and testing process . We only work with trusted brands and don't list products we don't believe in.

What payment methods do you accept?

We accept all major payment methods — credit and debit cards, PayPal, and cash on delivery for Bulgaria. All payments are secure and encrypted.

How can I track my order?

After your order ships, you'll receive an email with a tracking link. You can follow the status in real time directly through the courier's website.