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Air Diffusers Ltd.                             Unit 77, Enterprise Centre Michael Way, Warth Park Way, Raunds, 

+44 (0) 1933 697471

Gypsum Diffusers – Circular Diffusers

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For pricing information, discounts and availability, please contact our sales team at or call us on 01933 697471


Ventmann CIRCLE diffusers offer unparalleled versatility. Suitable for supply or extract, they are a stylish and functional addition to any room or interior design style.

Our CIRCLE diffuser is suitable for plasterboard ceilings or walls. Once installed, the diffuser forms a permanent bond with the plasterboard, offering outstanding durability. It can be sanded and painted just like the surrounding surfaces. It leaves no visible frames or flanges between the diffuser and the surrounding surface, making it ideal for very clean and modern interior design styles.

CIRCLE diffusers are designed to provide a radial air pattern with high entrainment and air mixing, resulting in a more comfortable environment for all occupants.

The diffuser cap is supported by the new Click system.‎ This system makes it even easier to put the cap in place correctly.‎ It is also more environmentally friendly and has a higher operational temperature range than the magnets previously used.

CIRCLE can be installed on its own or arranged into groups if required.

Available in 100/125/160/200/250mm connector diameters.

Technical Information

Materials: Gypsum composite body with steel connector, rubber gasket and elastic fixing strap.

45mm diffuser depth

Supply or extract

Suitable for short throw applications

Includes screws, fixing strap and plastic spacers

Additional information


100mm, 125mm, 160mm, 200mm, 250mm


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