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CO2 Art Inline Diffuser

Inline CO2 diffuser with a replaceable ceramic membrane, for 12/16 or 16/22 mm filter hose.

Regular price $82.40
Tax included Shipping calculated at checkout.
Filter Hose Size

Usually arrives in 2–5 business days

Delivery details

  • Dispatched within 1 business day
  • Proudly Kiwi since 2017
  • Expert advice

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.

Full delivery details

Pickup available at Aquascape Shop

Usually ready in 24 hours

Description

The CO2 Art Inline CO2 Diffuser is the ultimate solution for efficient CO2 injection in aquariums with external filters. Designed for use outside the aquarium, this diffuser keeps your tank clutter-free, allowing more room for plants while delivering superior CO2 absorption.

The V2 version of this classic diffuser features an upgraded replaceable ceramic membrane made with Fine Mist Technology, which optimizes CO2 dissolution rates. The diffuser transforms CO2 into streams of tiny bubbles, maximizing the saturation of CO2 in the water, leading to healthier, faster-growing plants.

The CO2 Art Inline Diffuser is available in two sizes to fit your filter setup:

  • 12/16mm (ID/OD ~13mm) for smaller filters.
  • 16/22mm (ID/OD ~17mm) for larger filters.

The diffuser’s durable metal body is crack-resistant, ensuring long-lasting performance. For best results, this professional-quality diffuser requires a minimum working pressure of 30 psi and should be used with CO2 pressure-rated tubing, not standard silicone tubing.

Key Features:

  • Replaceable ceramic membrane with Fine Mist Technology for optimal CO2 dissolution.
  • Available in two sizes: 12/16mm and 16/22mm to fit different external filters.
  • Durable metal body ensures longevity and resistance to cracking.
  • External installation keeps your tank clear of equipment, leaving more room for plants and creating a more visually appealing setup.

How to Use:

  1. Install the CO2 Art Inline Diffuser on the outflow hose of your external canister filter, choosing the appropriate size (12/16mm or 16/22mm) based on your filter tubing.
  2. Ensure you use CO2 pressure-rated tubing for safe and efficient operation, as the diffuser requires a working pressure of at least 30 psi.
  3. Replace the ceramic membrane periodically to maintain optimal CO2 dissolution rates (replacement membranes sold separately).

This diffuser is the best choice for aquarists using external filters who want efficient CO2 injection without cluttering their tanks with additional equipment.

  • 5 stars: 3 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
D
David Allan (New Zealand)
Easy to install

Easy to install. Appears to work well.

J
Joseph

Did not realise this was an nz shop until id ordered

t
tljackson773

Great product. Soda stream bottle was only lasting 5-6 weeks with an in tank diffuser. Hooked this up 12 weeks and 2 days ago, and that is how long the soda stream bottle lasted with this diffuser at about 3 bubbles per second.