Aquapro External Inline CO₂ Diffuser

The Aquapro External Inline CO₂ Diffuser (EC Series) is the professional solution for aquascapers who want the cleanest look inside their aquarium without compromising on CO₂ performance.

Unlike in-tank diffusers, the EC Series installs externally on your canister filter’s outflow tubing (available in 12/16, 16/22, and 20/25 mm sizes), keeping your aquascape free of clutter while ensuring maximum CO₂ absorption into the water column.

The ceramic diffuser membrane produces ultra-fine CO₂ mist, increasing contact time and improving efficiency compared to standard diffusers. Built from durable gunmetal aluminium alloy with precision machining, the EC Series is designed for long-lasting use.

Installation is simple: cut your filter’s outflow tubing, connect both ends to the diffuser, and attach your CO₂ line. Within minutes, your plants will enjoy consistent, fine CO₂ distribution that drives lush, healthy growth.

Features

• Inline Design – fits neatly on your canister filter outflow, keeping glassware clutter-free
• High CO₂ Dissolution – ceramic membrane produces ultra-fine bubbles for superior absorption
• Premium Build – gunmetal aluminium alloy body, durable and corrosion-resistant
• Flexible Sizes – available in 12/16 mm, 16/22 mm, and 20/25 mm tubing options
• Easy Installation – cut your outflow hose and connect in line
• Professional Look – maintains a clean, equipment-free display tank

What’s Included

• 1 × Aquapro EC Series Inline CO₂ Diffuser (choose size)
• 1 × Ceramic diffuser membrane (installed)