CV60FWBG – Rytons RytAround Ventilator (156mm External Dia.)

General Details

CV60FWBG – Rytons RytAround Ventilator (156mm External Dia.)

  • Circular louvre grille with spring clips and removable flyscreen.
  • Spring clips clamp into tubes and holes any size from 100mm to 150mm diameter.
  • Suitable for internal and external use.
  • Inverted fixed open louvres allow a high air flow and flush finish.
  • U.V. stabilised to slow down the effects of sunlight.
  • Louvre ventilators with flyscreens must not be used to supply combustion and cooling air to boilers, stoves and fires.
  • Please note: This item is a plastic component and therefore is not suitable for use within a) the external walls of buildings more than 11m high where people sleep on the premises (residential, institutional or hospitality) or b) external wall surfaces within 1m of the boundary if the building is 11m high or less, in England.  For a compliant alternative, contact us about custom grilles, available as part of the Rytons A1 Fire-rated Metal Range.


  • 156mm overall external diameter (see image gallery above).

Free Area:

  • Maximum air flows dependant on type/thickness of tube:
  • 100mm (4″) Diameter: 4,873mm² (48.73cm²) per unit without flyscreen / 2,912mm² (29.12cm²) per unit with flyscreen.
  • 125mm (5″) Diameter: 7,618mm² (76.18cm²) per unit without flyscreen / 4,641mm² (46.41cm²) per unit with flyscreen.
  • 150mm (6″) Diameter: 8,900mm² (89cm²) per unit without flyscreen / 6,062mm² (60.62cm²) per unit with flyscreen.


  • White.
  • Bespoke colour matching service available.  Call our sales office on 01536 511874 or email for details and pricing.


  • U.V. stabilised high impact polystyrene.


  • Important: The flyscreen MUST be removed if the grille is supplying combustion and cooling air to a boiler, stove or fire.  Remove flyscreen if not required.  Carefully fix metal spring clips into the back of the louvre.  Position clips inside the tube or hole and push firmly until the louvre is flush with the brickwork or inside the face.  We recommend you mastic around the inside edge of the louvre for extra adhesion to brickwork (especially with 150mm (6″) diameter tubes and holes).

Reference Material:

  • The Building Regulations, Approved Document J.
  • The Building (Scotland) Regulations, Mandatory Standard 3.21.
  • The Building Regulations (Northern Ireland), Technical Booklet L.
  • British Standard BS 5440-2.
  • For venting decorative fuel effect gas fires refer to British Standard BS 5871-3.
  • The Building Regulations, Approved Document F1 2021, Installation of ventilation systems, 1.80.  Each air terminal should have a free area of at least 90% of the free area of its associated ductNote: This approved document takes effect on 15 June 2022 for use in England.  It does not apply to work subject to a building notice, full plans application or initial notice submitted before that date, provided the work is started on site before 15 June 2023.

Handling Information:

  • Box quantity: 20 number.
  • Box size: 35cm W x 26cm H x 23cm D.
  • Box weight: 1.95kg.

NBS Specification:


Rytons is proud to be a family run business and British manufacturer since 1972

Quote Request


Please note: As a manufacturer, we deal exclusively with trade professionals and are unable to take price enquiries from members of the public.
We aim to respond to quote requests within the next working day.
In case of query please call 01536 511874, thank you.

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