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Chihiros External CO₂ Diffuser

$69.99 NZD
Tax included Shipping calculated at checkout.

Keep your aquascape clutter-free with the Chihiros External CO₂ Diffuser.

Installs inline on 12/16, 16/22 or 19/25 mm filter hoses, atomising gas through a replaceable ceramic disk for maximum CO₂ dissolution and crystal-clear viewing inside the tank.

Minimum pressure 1.5 bar.


Size

Pre-order now to make sure you don't miss out! Limited Quantities available.

ETA: May 20th 2025

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Sleek, Smart, Powerful

One Heater, Endless Possibilities.

Adjustable heating from 10 - 1000w

Description

Bring professional-grade gas diffusion to your planted aquarium without sacrificing the clean lines of your scape. The Chihiros External CO₂ Diffuser mounts inline on your canister filter’s return hose, hiding the hardware in your cabinet while delivering a micro-mist of CO₂ directly into the out-flow.

Key Features

  • Crystal-clear view, zero clutter – No more glass diffusers or bubble counters inside the tank; all you see is plants.
  • Engineered for efficiency – A precision-fired ceramic membrane atomises CO₂ into ultra-fine bubbles. The longer dwell time in the hose means more gas dissolves before reaching the display, reducing wastage.
  • Built to last – The anodised aluminium shell shrugs off high pressure and humidity, while the acrylic window lets you monitor bubble density at a glance.
  • Service-friendly – Twist off the front cap, swap the ceramic disk, and you’re back in action in minutes.
  • Fits your setup – Choose the size that matches your filter hose and flow rate. All models accept standard 4/6 mm CO₂ tubing via the included compression fitting.

Model guide

Model Hose Ø (ID/OD)

M 12 / 16 mm

L 16 / 22 mm

XL 19 / 25 mm

 

Specifications

  • Material: Aluminium alloy, acrylic, sintered-ceramic membrane
  • Minimum working pressure: 0.15 MPa / 1.5 bar
  • Membrane diameter: 17 mm (M), 21 mm (L), 25 mm (XL)
  • Replaceable diffuser head: Yes (spares sold separately)
  • Includes: Inline diffuser body, membrane pre-installed, hose nuts, O-rings, user guide

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Chihiros External CO₂ Diffuser - The Aquascape Shop
Chihiros Aquatic Studio

Chihiros External CO₂ Diffuser

$69.99 NZD
Bring professional-grade gas diffusion to your planted aquarium without sacrificing the clean lines of your scape. The Chihiros External CO₂ Diffuser mounts inline on your canister filter’s return hose, hiding the hardware in your cabinet while delivering a micro-mist of CO₂ directly into the out-flow....

Type

Aquarium Co2 Injection
View product