Chihiros External CO2 Diffuser 19/25 XL

The Chihiros External CO2 Diffuser 19/25 XL is an inline CO₂ diffuser designed for large aquariums using external canister filters with 19/25mm hose. It connects directly to the filter outlet hose, allowing CO₂ to mix with the aquarium water flow before entering the tank.

This external diffuser helps keep the aquarium interior clean by reducing visible CO₂ equipment inside the display area. The ceramic diffuser head produces fine CO₂ mist, while the aluminium and acrylic body gives a strong and clean finish.

The Chihiros External CO2 Diffuser 19/25 XL fits 19/25mm or 20mm hose connections and has a 30mm diameter with 136mm height. It requires a minimum working pressure of around 0.15MPa / 1.5 bar for proper diffusion and comes with a replaceable diffuser head for easier maintenance.

FAQ

1. What is the Chihiros External CO2 Diffuser 19/25 XL used for?
It is used to inject and diffuse CO₂ through a 19/25mm external filter hose.

2. Where should it be installed?
Install it inline on the external filter outlet hose before the water returns to the aquarium.

3. What hose size does this model fit?
This XL model fits 19/25mm hose and also supports 20mm hose connection.

4. What is the minimum working pressure?
The minimum working pressure is about 0.15MPa / 1.5 bar.

5. Is the diffuser head replaceable?
Yes, the ceramic diffuser head is replaceable for easier maintenance.

Technical Specifications

• Product Type: External CO₂ Diffuser / Inline CO₂ Atomizer
• Brand: Chihiros
• Model: XL 19/25mm
• Title: Chihiros External CO2 Diffuser 19/25 XL
• Hose Compatibility: 19/25mm external filter hose
• Alternative Hose Connection: 20mm
• Diameter: 30mm
• Height: 136mm
• Material: Aluminium, acrylic, and ceramic
• Diffuser Head: Ceramic, replaceable
• Minimum Working Pressure: 0.15MPa / 1.5 bar
• Installation Type: Inline installation on external filter outlet hose
• Suitable For: CO₂ injection in large aquariums with external canister filters
• Main Benefit: Better CO₂ distribution with less visible equipment inside the tank