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Kair Louvred Wall Vent Grille: Discreet external venting for extractor fans

Kair White Louvred Wall Vent Grille 155mm External Dimension with Flyscreen and Round 100mm - 4 inch Rear Spigot
4.6
[Anti-Insect Mesh]  Built-in flyscreen prevents insects and debris while maintaining optimal airflow.
[Compact 155mm Size]  155 x 155mm external dimensions for neat ceiling or wall installations.
[100mm Rear Spigot]  4"/100mm male spigot connects to standard ducts; removable for flat-surface mounting.
[Tool-Friendly Louvres]  Louvre flips open with a flat-head screwdriver for easy cleaning and maintenance.
[Push-Fit Versatility]  Push-fit design fits Kair 100mm ducts or 102mm flexible hoses; ideal for bathrooms.
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Home ventilation accessory designed to provide discreet external venting with insect protection. Suits homeowners and installers who want a neat finish, quiet airflow and straightforward upkeep. Will Kair Louvred Wall Vent Grille fit standard 100mm extractor systems and stay easy to maintain?

⚡ At a Glance
  • Airflow Performance: Steady airflow with minimal turbulence when fitted to 100mm duct systems
  • Best for: Bathroom and kitchen extractor ventilation, hydroponics and in-line extract fans
  • Not ideal for: Installations requiring an in-built mechanical backdraft damper, which is not supplied

White plastic grille with fixed louvres, anti-insect mesh and a 100mm round male rear spigot. Push-fit design allows simple connection to compatible Kair ducts or flexible hose.


Keeps insects and debris out – with built-in flyscreen

Anti-insect mesh sits behind fixed louvres, and the louvre can be flicked open using a flat-head screwdriver to access the screen. The mesh acts as a barrier while allowing air to pass through the grille.

Prevents flies and debris entering ductwork while maintaining airflow, reducing the need for frequent internal cleaning.

Quick, adaptable installation – with cut-off 100mm rear spigot and push-fit fittings

100mm round male rear spigot mates with Kair 100mm female ducts or a 102mm flexible hose and can be cut off where a flush wall finish is required. Push-fit connections let the spigot join ducting without screws or complex fixings.

Enables fast connection to standard extractor systems or a neat flush mounting for a tidy finish, ideal for DIY and trade installers alike.

Neat external finish and low wind noise – thanks to fixed louvres and streamlined shape

Fixed louvres direct airflow outward and the smooth plastic face reduces turbulent eddies that cause noise. User feedback highlights whisper-quiet behaviour in windy conditions.

Delivers a professional-looking exterior and quieter operation on exposed walls, making it suitable for visible external installations.

✨ The 4 Key Reasons for Kair Louvred Wall Vent Grille
  1. Professional finish – delivers a clean exterior appearance for visible wall installations
  2. Whisper-quiet in wind – reduces external noise when exposed to gusts and drafts
  3. Push-fit connection – enables quick, tool-free duct attachment during DIY installations
  4. Cut-off rear spigot – allows flush mounting where a flat finish is required on walls
📋 Technical Details at a Glance
  • Material: White plastic
  • External Dimensions: 155mm x 155mm
  • Rear Spigot: 100mm round male (cut-off)
  • Spigot Options: Can be cut off for flush mounting
  • Louvre Type: Fixed louvres, flick-open for access
❓ Frequently Asked Questions

Q: Will this fit standard 100mm ducting?

A: The rear spigot is a 100mm round male connection designed to mate with Kair 100mm round female duct or a 102mm flexible hose.

Q: Can the spigot be removed for a flush fit?

A: Yes, the 100mm rear spigot can be cut off if a flat surface finish is preferred.

Q: How do I clean the insect screen?

A: The louvre can be flicked open with a flat head screwdriver to allow access and cleaning of the flyscreen.

🏆 Our Verdict

Suitable for homeowners and installers needing a neat, insect-resistant external vent for standard 100mm extractor systems. A built-in flyscreen, fixed louvres and a push-fit 100mm spigot combine to make connection and upkeep straightforward while preserving a discreet external appearance. Simple installation and low maintenance suggest strong long-term value for typical household ventilation projects.