Ceiling Grille Kit - Domus Radial System

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Ceiling Grille Kit - Radial Duct System
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Ceiling Grille Kit - Radial Duct System

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Ref: RADIAL-GRILLE-KIT

From: 34.99 (Incl. VAT @ 20%)

Select A Quantity:

Choose Your Grille Kit
Choose You Grille Kit
Curved - Gloss White 34.99
Curved - Brushed Metal 34.99
Curved - Silver 34.99
Circular Diffuser - White 34.99
Dimpled - Gloss White 34.99
Dimpled - Silver 34.99
Air Disc Valve - Gloss White 26.99


  • A choice stylish designer curved, dimpled or circular room grilles.
  • Part of the DIY Domus Radial Duct System.
  • Kit consists of grille, sleeve, plenum and clips.
  • Can be used for supply or extract air.
  • Radial duct not included.
  • Removable wipe clean grille.
  • Plenum allows for easy commissioning.
  • Designed specifically for MVHR systems.




To complement the Domus Radial Duct System, Polypipe have designed a range of architectural grilles that meet modern living standards.

These stylish designer grilles supersede outdated traditional plain air valves to provide a stunning finish to your heat recovery system. Gloss white, silver or brushed metal ceiling grilles will give a clean fresh look to any bathroom, kitchen bedroom or living area.

  • A choice stylish designer curved, dimpled or circular room grilles.
  • Part of the DIY Domus Radial Duct System.
  • Kit consists of grille, sleeve, plenum and clips.
  • Can be used for supply or extract air.
  • Radial duct not included.
  • Removable wipe clean grille.
  • Plenum allows for easy commissioning.
  • Designed specifically for MVHR systems.



The Domus Grille kit is an integral part of Radial Duct System. It is designed to only work with Radial Duct parts and should not be fitted with any product outside of this range.

The Grille Kit provides equipment for two installation types when connecting from the duct plenum to the ceiling grille. A soil or flexible duct option, please see below drawing showing you both fixing options.



Simply connect the items as shown above and mount the grille in the ceiling. Using the clips provided, connect the push-fit radial duct (supplied separately) to the grille plenum.

For future reference, please take note of the commissioning point mounted inside the grille plenum. This will be used with the commissioning kit to balance your heat recovery system when fully installed.


Here is a list of items that are included in the kit:

  • Grille plenum with commissioning point and two duct blanking plates.
  • A 300mm length of solid duct (solid duct installation option).
  • A 300mm length of flexible duct (flexible duct installation option).
  • Two worm drive clips (flexible duct installation option).
  • Ceiling grille back plate.
  • Ceiling grille.

  • Items you will need to complete the grill kit installation:

    • A commissioning kit for airflow adjustment when commissioning the system.
    • Sealant for sealing solid duct connections.
    • Plasterboard knife for cutting a hole for the ceiling grille.
    • Flat blade screwdriver.


Curved Designer Grille Finished in Gloss White

A stylish designer curved grille that hugs the ceiling line.

The grille has a high gloss finish that is discreet and will blend into any white ceiling. Perfect for bedrooms and living areas.

Within the kit you will receive this grille, back plate, plenum and duct for either flexible or solid duct connection.

This grille (and kit components) can also be ordered separately on our website.

Curved Grille Finished in Brushed Metal

A stylish designer curved grille that hugs the ceiling line.

The grilles brushed metal effect gives a striking high end look that will stand out on any white ceiling. Perfect for kitchens and wet rooms where a chrome and metal finish is featured.

Within the kit you will receive this grille, back plate, plenum and duct for either flexible or solid duct connection.

This grille (and kit components) can also be ordered separately on our website.

Curved Grille Finished in Silver

A stylish designer curved grille that hugs the ceiling line.

The grille has a silver finish that is quite stark so will suit a more modern room. In our opinion, perfect for offices, studies where a more formal look is desired.

Within the kit you will receive this grille, back plate, plenum and duct for either flexible or solid duct connection.

This grille (and kit components) can also be ordered separatley on our website.

Circular Diffuser Finished in Gloss White

A stylish designer circular grille that hugs the ceiling line.

A traditional gloss white diffuser that is great for general use. Great for any room.

Within the kit you will receive this grille, back plate, plenum and duct for either flexible or solid duct connection.

This grille (and kit components) can also be ordered separately on our website.

Flat Dimpled Grille Finished in Gloss White

A stylish designer flat grille that hugs the ceiling line.

The grilles high gloss finish is discreet and will blend into any white ceiling.

Within the kit you will receive this grille, back plate, plenum and duct for either flexible or solid duct connection.

This grille (and kit components) can also be ordered separately on our website.

Flat Dimpled Grille Finished in Silver

A stylish designer flat grille that hugs the ceiling line.

The grilles high gloss finish is discreet and will blend into any white ceiling.

Within the kit you will receive this grille, back plate, plenum and duct for either flexible or solid duct connection.

This grille (and kit components) can also be ordered separately on our website.

Traditional Gloss White Air Valve Grille

A tried and tested grille used in most heat recovery systems. Its discreet and will suit any room.

The air valve is finished in a high gloss finish and is adjustable.

Within the kit you will receive this grille, back plate, plenum and duct for either flexible or solid duct connection.

This grille (and kit components) can also be ordered separately on our website.

As the air valve is adjustable, commissioning is done at the grille face, NOT in the plenum like all the above options. Because of this, the plenum supplied within this kit is slightly different.



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