Short Round to Rectangular Adaptor Female


Short Round to Rectangular Adaptor Female

  •   In Stock
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£2.86 £2.38
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Further Information


  • UK manufactured
  • Pipe ends are female and will accept male fittings such as bends and grilles.
  • Lengths of duct channels can be joined together using a male connector.
  • Easy to install and durable, just push-fit duct and fittings together.
  • Compatible with most other manufactures
  • An extensive range of fittings, outlets, and grilles are available
  • Max / min temperature: +60°c / -15°c.
  • DW/154 and meets UL94HB flammability standard
  • Suitable to use in compliance with Part F Building Regulations.
  • Sap Appendix Q compliant
  • Airflow performance is independently tested by BSRIA or BRE. 


110x54mm - Short Round to Rectangular Adaptor Female

Product part Number

Short Round Female Adaptor - AS110100


Adaptor for 100mm round female spigot to 110mm x 54mm rectangular duct pipe

Our range of plastic ducting is UK manufactured with top 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 is 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.


To provide the best performance in airtightness and durability we recommend You provide greater mechanical strength to a joint by using a combination of plastic ducting sealant and aluminium duct sealing tape

  1. Apply duct sealant to the male fitting
  2. Push together
  3. Apply aluminium duct sealing tape over joint

Alternatively, you can use self-sealing fittings that speed up the time taken by up to 70% and can be easily dismantled

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

  • 110x54mm rectangular to 100mm


Technical Specification

Plastic Short Round To Rectangular Adaptor (Female)

Retangular System

110x54mm - 100mm

Product Type 


Free Area


Length (mm)


Width (mm)


Height (mm)






Weight (g)


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



Connection Type



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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