Ultra Silent Ducting — Acoustic Ducting for Quiet, Efficient Extraction
Best for: Growers who need powerful extraction without waking the neighbourhood
Our thoughts
If noise from your extraction fan is a problem, this solves it properly. Three-layer acoustic design that actually works, trusted by growers for over 20 years, and made to European HVAC standards. Pairs beautifully with high-performance fans where you need the airflow but not the racket.
Ultra Silent Ducting is a three-layer acoustic ducting system designed to dramatically reduce fan noise without compromising airflow. Built with a steel helix core, non-allergenic glass-wool-free insulation, and a black aluminium outer vapour barrier, it connects directly to your extractor fan or filter flange using a standard duct clip. The inter-woven insulation dampens sound vibration while maintaining clean air movement — no back pressure, no hassle.
How it compares
Standard aluminium or flex ducting moves air fine but transmits every hum and vibration straight into your room. Acoustic ducting tackles this differently.
- Reduces fan noise significantly without additional mufflers or silencers
- Non-allergenic insulation — no glass wool contamination risk
- Flexible yet robust — bends 180 degrees without creasing or kinking
- Premium-grade material that holds its shape under pressure
You're paying more upfront, but you're buying a complete noise solution in one piece rather than stacking silencers and mufflers.
Usage guidance
Installation
Slide the ducting over your extractor fan or filter flange and secure with a duct clip. Cut to length using sharp scissors for the aluminium and fibreglass, and wire cutters for the spiral core.
Performance optimisation
Stretch the ducting out as much as possible during installation — the more taut it is, the better the noise reduction. Suspending runs with bungee cords further isolates vibration transmission through ceilings.
Pairing with fans
Works particularly well with high-output EC extraction fans where noise is most noticeable. The acoustic layer complements any fan size and doesn't add significant back pressure.
Technical specifications
- Construction: Three-layer design with steel helix core, acoustic fibre insulation, and aluminium outer barrier
- Insulation: Non-allergenic, glass-wool-free acoustic membrane
- Length: 10 metres per length (can be cut to size)
- Available diameters: 4" (102mm), 5" (127mm), 6" (152mm), 8" (203mm), 10" (254mm), 12" (318mm)
- Material composition: High-grade layered aluminium with metal spiral, cross-woven insulation
- Certification: REACH-certified European manufacturing standard
- Installation: Fits directly over extractor fan or filter flanges using standard duct clips
Who this is for
- Growers running powerful extraction fans who need noise control
- Anyone growing in shared housing or noise-sensitive environments
- Serious hobbyists and commercial growers prioritising discretion and quality
- Setups where vibration isolation matters as much as airflow
Less critical in open-plan grow rooms with external ducting, but essential in lofts, sheds, or indoor spaces where extraction noise carries.
Our take
This is proper acoustic ducting, not a cheap compromise. It's been trusted by growers for over 20 years, manufactured to HVAC standards, and does exactly what it's supposed to do — move air quietly without the contamination risk of cheap insulation.
If extraction noise is your problem, this is worth picking up. Works brilliantly paired with EC fans and actually eliminates the need for secondary silencers. Good time to buy while clearance stock lasts.
