Rectangular Self Seal Coupling Duct to Fitting


Rectangular Self Seal Coupling Duct to Fitting

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Further Information


  • UK Manufactured
  • Easy to install and durable, just push-fit duct and fittings together
  • Compatible with most other manufactures
  • Extensive range of fittings, outlets, and grilles available
  • Max / Min Temperature: +60c / -15c
  • DW/154 and meets UL94HB Flammability standard
  • Suitable to use in compliance with Part F Building Regulations
  • Sap Appendix Q Compliant
  • Airflow performance independently tested by BSRIA or BRE


Rectangular Self Seal Coupling Duct to Fitting

Product Part Number

204x60mm Duct to Fitting Coupling - VSSC204DF

220x90mm Duct to Fitting Coupling - VSSC220DF

204X60 Self Seal Conn Duct to Fitting - VSSC204DF

Used to connect 204X60 mm ducting to a 204X60mm fitting

  • Zero air leakage
  • No tape or sealant required
  • Quick and easy to install
  • Duct to duct fitting also available - VSSC204DD

220X90mm Self Seal Conn Duct to Fitting - VSSC220DF

Used to connect 220x90mm ducting to a 220x90mm fitting

  • Zero air leakage
  • No tape or sealant required
  • Quick and easy to install
  • Duct to duct fitting also available - VSSC220DD


Our PVC ducting range is UK manufactured with high quality materials that will supply a durable product suitable for domestic and commercial systems

It is perfectly suited for ducting your Ventilation system, Kitchen extractor fan, bathroom fan or In-Line Extract Fans

It can be used as a part of a long ductwork run for a variety of purposes including whole house ventilation, passive stack vent, positive input, air conditioning, HVAC, and Heat Recovery Systems.


Solid Rigid ducting systems are suitable for use in all buildings to provide superior airflow performance vs. comparative size rectangular or flexible pvc or Aluminium duct. Suitable to use in compliance with Part F Building Regulations.

Insulation of Ductwork

It is important that any ducting located in a cold area (e.g. loft space) to be insulated. The insulation needs to be the equivalent of 25mm thick and have a thermal conductivity of 0.04W/(m.k) or less.

This ensures that condensation doesn’t form due to the difference in air temperature inside the duct when compared to the air temperature in the cold space.

If you don’t have a loft space there is still a need for insulated ducting on the intake and exhaust legs, as they will be carrying cold air in a warm space. The level of insulation can be achieved by wrapping PVC duct in a layer of 25mm duct wrap that has a silver foil face on a 25mm rockwool

It is also worth noting that foil wrap with air bubbles (bubble wrap) is no longer applicable in building control regulations

Available Sizes

  • 204x60mm ducting to 204x60mm fitting
  • 220x90mm ducting to 220x90mm fitting

NOTE: If you require larger ductwork we recommend you use Metal Spiral ducting and fittings due to superior strength


Technical Specification

Technical Drawings



Rectangular Self Seal Coupling Duct to Fitting Specification

Rectangular System (mm) 



 Product Type

 Ducting Connector

 Ducting Connector 

 Free Area












 Spigot Size












 Temp Max (°C)



 Temp Min (°C)



 Pressure Loss (Pa) 15 l/s



 Pressure Loss (Pa) 30 l/s



 Pressure Loss (Pa) 60 l/s



 Part Number 



 EAN - Barcode





BPC have years of experience in delivering equipment around the UK and other Worldwide destinations. Our dedicated dispatch team work hard to ensure the highest standards are met so that your goods arrive on-time and in pristine condition.

Our market knowledge and experience allow us to match our service to meet your requirements swiftly and safely.

Free Delivery

We offer free delivery on any order over £100 to any mainland UK or Ireland address  

Worldwide Delivery

Worldwide delivery is possible on almost all our products at low costs, delivery to countries outside the EU are normally delivered to the nearest customs office, port or terminal for the purchaser to collect and complete custom clearance.

Please contact us to confirm shipping cost and availability.  

End-To-End Support Delivery is available within 48-72 hrs, depending on method of transport, for hundreds of stock items.

Customers receiving a pallet delivery will be emailed on day of dispatch advising of delivery date. Parcel deliveries will be notified via email or SMS directly from DPD.

These checks are part of a unique commitment to building relationships with customers, understanding their specific delivery needs and responding to them positively and promptly.  

We deliver on Service

Key components such as ductwork and fittings plus the most popular selling MVHR units are kept in stock in our UK-based warehouse, which means that you receive the best possible delivery dates.

All goods are expertly packed by a professional team so that your equipment is received in pristine condition ready for installation.

All deliveries co-ordinated to suit your specific requirements and construction programme.

Delivery Partners

We only use the couriers with the highest standard of service that include

  • Fastway
  • DPD
  • Montgomery Transport
  • Liam Connolly Roadfreight Ltd
  • Europa Worldwide


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