AQUAEL Luftslang 4/6mm 6m — aquarium air tubing, inner Ø 4 mm, outer Ø 6 mm, length 6 m

AQUAEL Luftslang 4/6mm 6m is a flexible aquarium air tubing with a 4 mm inner diameter and 6 mm outer diameter, supplied in a 6-metre length. It is designed for connecting air pumps, check valves, airstones and other standard aquarium fittings to provide steady airflow for aeration, filtration vents and CO2 distribution. The tubing is suitable for use in both freshwater and marine aquaria and can be cut to length to match individual setups.

Advantages

The tubing is made from pliable material that resists kinking and remains flexible at typical room and aquarium temperatures. Its dimensions (4 mm inner, 6 mm outer) match common aquarium fittings to ensure a secure fit without excessive slack. The 6 m length allows routing between equipment and the aquarium with enough reserve for repositioning. The material is neutral for aquarium use and intended to minimize adverse effects on water quality when used externally and in line with standard practices.

Suitable for

• Connecting air pumps to airstones and diffusers
• Linking check valves, air control valves and distribution manifolds
• Routing to external filters, reactors or CO2 diffusers requiring air or gas lines
• Temporary or permanent installations in freshwater and marine tanks

Key specifications

• Inner diameter: 4 mm
• Outer diameter: 6 mm
• Length: 6 m
• Material: flexible, aquarium-grade tubing (non-reactive in typical external use)
• Compatibility: standard aquarium air fittings and connectors sized for 4/6 mm tubing

How to use

Measure and cut the tubing to the required length using a sharp scissors or tubing cutter to ensure a straight, clean edge. Slide the tube firmly onto the outlet of the air pump, check valve or fitting until it seats securely; use hose clamps if a tighter seal is needed. Route the tubing to avoid sharp bends or pinching points and secure it along the route with clips or cable ties as required. If used for CO2 or pressurized gas lines, verify compatibility with the gas system and follow manufacturer guidance for safe operation.

Usage recommendations

For durable performance, avoid prolonged exposure of the tubing to direct sunlight and replace sections that show signs of cracking, swelling or hardening. Periodically inspect connections and replace tubing every 12–24 months or sooner in aggressive environments. When cutting, ensure clean edges to avoid leaks; if using clamps, select non-corrosive types for marine applications.