Ventilation Hoses / Exhaust Hoses – Aluminum Flexible & Soundproofed (Phonic Trap) Ø102–Ø315

Ventilation Hoses – the Clean Connection Between Fan, Filter & Outlet

A good ventilation hose often determines whether your exhaust system runs quietly and efficiently. Here you'll find flexible Aluflex hoses for standard installations and sound-insulated Phonic Trap hoses for particularly low-noise setups – in common diameters from Ø102 to Ø315.

  • Aluflex (per meter): ideal for short distances, easy installation, quickly cut.
  • Phonic Trap (sound-insulated): for quiet exhaust, light-proof and without fiberglass/rock wool particles – perfect when noise is critical.
  • Choose the right diameter: Hose diameter should match the fan and filter – only use adapters if necessary.

Also suitable: Exhaust Fans · Activated Carbon Filters · Connectors & Hose Clamps

Choosing the Right Exhaust Hose: Diameter, Material & Length (Avoid Mis구매)

When it comes to ventilation hoses, three things matter: the right diameter, low resistance, and – if necessary – noise reduction. If you plan this carefully, your system will run noticeably quieter and more efficiently.

1) The Most Important Point: Diameter (Ø) Matching Your System

Always choose a hose that matches the connection of your fanand carbon filter. Reductions/extensions do work, but they often increase resistance and airflow noise – especially over longer distances.

  • Ø102/Ø127:common for compact setups
  • Ø160:plenty of reserve, often more relaxed for longer runs
  • Ø204/Ø254/Ø315:for when large air volumes or long distances need to run smoothly

2) Aluflex or Sound-Insulated? (Quick Decision)

Aluflex Hose: Standard for short, simple connections

  • Idealif you have short distances and want to install as cheaply/simply as possible.
  • Tip:When laying the hose, "stretch" it out as much as possible (fewer ridges = less noise & resistance).

Phonic Trap: for quiet exhaust without glass wool

  • Idealif you are working in a noise-sensitive environment or want to minimize airflow noise.
  • Plus point: sound-insulated and without glass/rock wool particles – pleasant to work with.
  • Practical use: particularly useful directly at the fan (where most noise often originates).

3) Length & Installation: How to Reduce Pressure Loss (and thus Noise)

  • As short as possible:every additional meter increases resistance.
  • Few kinks:large radii instead of tight bends.
  • No "loops":guide the hose cleanly, don't let it sag.
  • Tight connections:tighten clamps and, if necessary, reinforce with sealing tape.

Installation Checklist (to ensure it's truly sealed)

  • Hose clamps / connectorschoose according to Ø
  • Slide the hose completely over the connection (not just "to the edge")
  • Retighten after initial operation (material often settles slightly)

FAQ: Ventilation Hoses

Why is my exhaust system noisy despite a good fan?

Common causes include a hose that is too long, tight kinks, or an Aluflex hose that isn't fully stretched out. This creates resistance – and thus more airflow noise.

When is a sound-insulated hose really worth it?

If you want to reduce noise or if the fan runs close to living areas. In such cases, a sound-insulated hose often brings more benefit than "yet another more powerful fan."

What else is needed to complete a system?

Typically: exhaust fan+ carbon filter+ connectors/clamps+ suitable hose.

Conclusion:The best fan is of little use if the hose path is too long/kinked. Plan the Ø appropriately, keep paths short, and use sound-insulated variants where it acoustically matters most.