Diffuser Original Extend M white – 17mm CO₂ diffuser for aquariums

This compact CO2 diffuser suits hobbyists with small to medium planted tanks, roughly 100–250 l, who want a diffuser that stays unobtrusive in the aquascape. It replaces glass models, which break easily, and plastic models, which usually look less refined.

Why it matters

• Ceramic membrane: a sintered ceramic element releases fine CO2 bubbles, which dissolve more readily in water and help the CO2 system use gas more efficiently.
• Acrylic body: the body is as transparent as glass but does not shatter or chip easily, so it is durable in regular use and nearly invisible in the tank.
• 17 mm membrane: the small diameter takes up little space, leaving room for plants and easier placement of other equipment.
• Bendable tube: the long tube can be shaped into an elbow over the tank rim with gentle heat, such as a lighter, so it fits the glass thickness and keeps the hose neatly routed without extra fittings.

Specifications

• Recommended aquarium volume: approx. 100–250 l
• Membrane diameter: 17 mm
• Total height: approx. 38–40 cm (can be trimmed and bent)
• Material: acrylic + ceramic
• Hose connection: standard 6 mm (4/6)
• Included: 2 suction cups for mounting, extra tube sections for practising bending

What it works with

The diffuser is designed for CO2 systems in planted freshwater aquariums within the 100–250 l range. Its 6 mm standard hose connection fits typical CO2 setups, and the included spare tubing lets you practise bending before you shape the final tube on your own tank.