Chihiros External CO₂ Diffuser

Bring professional-grade gas diffusion to your planted aquarium without sacrificing the clean lines of your scape. The 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.

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