100 mm / 4'' Round Ceiling Ventilation Cover Plastic Air Vent Diffuser with Fixing Ring - White

This 100 mm / 4 inch round ceiling ventilation cover is designed for efficient air distribution in...

Best current price£16.78from OnBuy.com

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OnBuy.com100 Mm / 4'' White Pvc Round Ceiling Ventilation Cover/Plastic Air Vent Diffuser With Fixing Ring For Bathroom Kitchen Hydroponics In-Line Extract Fan 5056194039291
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£16.78
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eBayVents 100mm (4”) White Round Ceiling Vent Cover – PVC Air 4"" - 100 mm,
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£17.16
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Product Information

Full details

The VENTS UK 100 mm Round Ceiling Ventilation Cover is designed for homeowners and DIY enthusiasts looking to improve air circulation in bathrooms, kitchens, or specialized hydroponic environments. It excels at providing a clean, aesthetic finish to HVAC or in-line extraction setups, though it is intended primarily for standard interior ventilation rather than heavy-duty industrial or extreme-heat ducting.

All features

ColourWhite
BrandVENTS UK

Extended Product Information

FAQs

Does this cover include screws?

The product includes the fixing ring; however, mounting screws for your specific ceiling type (plasterboard, wood, etc.) should be selected based on your installation surface.

Can this be painted?

While the plastic is finished in a standard white, it can be painted using a plastic-adhesion primer and suitable spray paint if you wish to color-match your ceiling.

Is this suitable for outdoor use?

This product is designed for indoor ceiling ventilation; long-term outdoor exposure to weather and direct sunlight may affect the material durability.

Will this fit a 105 mm duct?

This cover is specifically designed for 100 mm (4-inch) ducting. It may not provide a proper seal for larger diameter pipes.

How do I remove the cover for cleaning?

Most models with a fixing ring can be gently pulled or twisted to release the friction-fit cover from the ring.

Troubleshooting

Vent cover feels loose after installation

Check that the fixing ring is screwed tightly into a stud or secure wall plug and ensure the cover is fully seated in the locking mechanism.

Visible dust buildup on the grille

Gently remove the cover and clean it with warm soapy water; ensure it is completely dry before reinstalling.

Airflow is restricted

Inspect the internal ducting for blockages or check that the in-line fan is operating at the correct capacity for your room size.

Pros and Cons

Pros

  • Easy to install with the included fixing ring
  • Moisture-resistant material ideal for kitchens and bathrooms
  • Clean, neutral white finish
  • Lightweight yet durable design
  • Compatible with standard 4-inch ducting

Cons

  • Not suitable for high-temperature industrial exhaust
  • Plastic may discolor if exposed to direct, intense UV light over many years
  • Requires manual measurement to ensure duct alignment

Setup, Compatibility & Care

Installation involves securing the fixing ring to your ceiling surface using appropriate screws for your ceiling material (e.g., drywall anchors for plasterboard). Once the ring is mounted, the vent cover snaps or slides into place over the duct outlet. For maintenance, simply wipe the surface with a damp cloth and a mild detergent to remove dust or grease buildup. Avoid using abrasive sponges, which can scratch the plastic surface and make it more prone to catching dust in the future. Always ensure that the vent is not blocked by insulation or debris to maintain proper system performance.

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