RD42M – Rytons Flat Channel Duct 2m L (110mm x 54mm Range)

General Details

RD42M – Rytons Flat Channel Duct 2m L (110mm x 54mm Range)

  • 110mm x 54mm rectangular ducting 2m long.
  • Male component.  Part of Rytons 100mm (110mm x 54mm) RytDuct® Range.
  • For applications requiring lower extraction rates such as bathrooms, WCs and utility rooms.
  • Suitable for use with fans with a maximum output of 250m³ per hour.
  • Operating temperature range -15ºC to 60ºC.
  • Will meet UL94 HB flammability standard.


  • 110mm W x 54mm H (overall external) x 2m L.
  • 1m lengths also available RD41M.

Compatible Components:

  • Bends and Connectors:
  • Rytons Rectangular Wall Plate RD4WP.
  • Rytons Short Round to Rectangular Adaptor Male RD4SFR.
  • Rytons Flat Channel Horizontal Adaptor RD4FR.
  • Rytons 90° Elbow Connector RD4EC.
  • Rytons 90° Elbow Bend RD4EB.
  • Rytons Flat Channel T Piece RD4TFLAT.
  • Rytons 90° Horizontal Bend RD4H90.
  • Rytons 90° Vertical Bend RD4V90.
  • Rytons Flat Channel Connector RD4C.
  • Rytons Galvanised Banding (12mm W x 10m L) BANDGALV.
  • Rytons Flat Channel Duct Clip RD4CLIP.
  • External Grilles:
  • Rytons Multifix® Air Brick with Flat Channel Ducting Adaptor RD4MFAB.

Free Area:

  • 5,424mm² (54.24cm²) per unit.

Minimum/Maximum Operating Temperatures:

  • -15ºC to 60ºC.

Pressure Loss:

  • 8 l/s: 0.40 pa.
  • 13 l/s: 3.60 pa.
  • 21 l/s: 9.60 pa.
  • 30 l/s: 17.12 pa.
  • 60 l/s: 66.20 pa.
  • 120 l/s: 256.10 pa.


  • White uPVC.
  • Manufactured in compliance with Domestic Plastic Ductwork Specification DW/154.
  • Will meet UL94 HB flammability standard.

Handling Information:

  • Box quantity: 10 lengths.
  • Individual weight: 148g.

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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