Diffuser Special Extend L white – 25mm CO₂ diffuser for aquariums

This white CO2 diffuser suits keepers running planted aquariums of roughly 200–400 L who need a diffuser that dissolves gas efficiently and fits a varied tank layout. The 24 mm membrane and the long, adjustable tube address both the dissolution requirement and the installation question in one unit.

Why it matters

• Ceramic-fibre membrane: the manufacturer describes it as a fibre construction rather than standard sintered ceramic, with micro-channels of very small diameter and high density, which the supplier links to ultra-fine CO₂ bubbles.
• Claimed dissolution efficiency: according to the supplier, the finer bubbles improve CO₂ dissolution, allowing higher output at lower CO₂ consumption.
• Tube about 40 cm long: it can be cut to length or bent (for example at the glass edge), so the line can be routed to match the tank and the glass thickness.
• High-strength acrylic body: the body is transparent and, according to the supplier, resists cracking and chipping, so it stays nearly invisible among plants.

Specifications

• Recommended aquarium size: approx. 200–400 L
• Membrane diameter: 24 mm
• Total length: approx. 40 cm (can be trimmed and bent)
• Material: high-strength acrylic
• Membrane colour: white
• CO₂ connection: standard 4/6 mm CO₂ tubing
• Weight: 0.06 kg
• Package contents: diffuser, 2 suction cups, extra tube sections for practising cutting and bending

What it works with

The diffuser is designed for planted freshwater aquariums in the 200–400 L range that use a standard 4/6 mm CO₂ line. Its 24 mm membrane is aimed at larger tanks with higher plant demand, and the included spare tube sections let you practise trimming and bending before fitting the final line.