CO₂ Valved Cylinder for Aquariums - 3.5kg
CO₂ Valved Cylinder for Aquariums - 3.5kg - 3.5kg is backordered and will ship as soon as it is back in stock.
Usually arrives in 2–5 business days
- Dispatched within 1 business day
- Proudly Kiwi since 2017
- Expert advice
Ships to New Zealand
Ships to New Zealand
- Free shipping on orders over $150. Not included: rural addresses and bulky items such as aquariums.
- Under $150, courier is $6.80 to $9.90 depending on region, or $11.50 to $14.90 for rural addresses. The exact cost shows at checkout.
- Rural and South Island addresses can take a little longer.
- Damaged or faulty on arrival? Tell us within 7 days for a replacement or refund.
Pickup available at Aquascape Shop
Usually ready in 24 hours
CO₂ Valved Cylinder for Aquariums - 3.5kg - 3.5kg is backordered and will ship as soon as it is back in stock.
Description
Description
If you’re running a planted aquarium, a steady and reliable supply of CO₂ makes all the difference. This 3.5kg CO₂ cylinder is a great option for hobbyists who want longer runtimes between refills and a clean, professional setup.
Built to AS/NZS 1841.6 standards, this cylinder is safe, durable, and refillable at most gas suppliers across NZ and Australia. It comes fitted with a W21.8 valve, which is the standard fitting used here — so it works with all compatible regulators on the market.
Why this cylinder?
- Perfect size – 3.5kg gives you months of CO₂ for medium to large tanks.
- Certified safe – Meets NZ & AU requirements for refillable cylinders.
- Standard fitting – W21.8 valve works with all local regulators.
- Built to last – Powder-coated steel body with a solid brass valve.
- Refillable – No waste, just take it in for a refill when empty.
Specifications
- Capacity: 3.5kg CO₂
- Height: 57cm (with valve)
- Diameter: 15cm
- Valve: W21.8 (NZ/AU standard)
- Standard: AS/NZS 1841.6 certified
Good to know
- Always keep the cylinder upright and secure.
- Check for leaks when setting up your regulator.
- Refills are available at most authorised gas suppliers.
