FDUCT53M – Rytons PVC RytHose 125mm Dia. x 3m L

General Details

FDUCT53M – Rytons PVC RytHose 125mm Dia. x 3m L

  • Fire-retardant, multi-purpose flexible ducting for low pressure venting.
  • Easily fitted to external grilles and round connectors.
  • May be used in conjunction with tumble dryers and domestic fans for bathroom and kitchen ventilation.
  • Not suitable for commercial ventilation applications.
  • Operating temperatures -15ºC to 60ºC.


  • 133mm Dia. x 3m L.
  • 6m length also available.

Compatible Components:

Free Area:

  • 12,669mm² (126.69cm²) per unit.


  • White.


  • Fire-retardant PVC supported by and covering a wire helix.
  • Lifespan: In normal static use, within the specified temperature range, this flexible ducting can be expected to last approximately 10 years.

Operating Temperature Range:

  • -15ºC to 60ºC.


  • Fully extend ducting and cut to length using a sharp knife and pliers.

Reference Material:

  • The Building Regulations F1 2021, Installation of ventilation systems:
  • 1.76: Rigid ducts should be used wherever possible.
  • 1.77: Flexible ductwork, where installed, should meet all of the following conditions.
    • a. Only used for final connections.
    • b. Lengths should be a maximum of 1.5m.
    • c. Meet the standards of BSRIA’s BG 43/2013.
  • 1.78: Any flexible ducts should be installed so that the full internal diameter is maintained and flow resistance is minimised. This is achieved by taking both of the following actions.
    • a. Pulling the duct taut.
    • b. Ensuring that ductwork does not pass through orifices with a smaller diameter than the duct itself.
  • 1.79: Ductwork installations should be designed and installed to minimise the overall pressure losses within the system by taking all of the following steps.
    • a. Minimising the overall length of duct.
    • b. Minimising the number of bends required.
    • c. Installing appropriately sized ducts for the air flow rate.
  • Note: 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.
  • Rytons RytHose meets the requirements of BSRIA BG 43/2013.

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.

Product required (product name and code):

Quantity required (box quantities may apply):

Colour required (RAL colour matching is available on some lines subject to an additional charge):

Notes or Additional Information:

Contact Name:

Company Name:

Email Address:

Contact Number (in case of query):