Rectangular Ducting Round to Straight Offset Adaptor

Part Number:

110x54mm Round to Rectangular Adapter A110100

204x60mm Round to Rectangular Adapter A204125

220x90mm Round to Rectangular Adapter A220150

110×54 to 100 Offset Straight Adaptor A110100
Used to connect 110x54mm ducting to 100mm round male fittings. A 100mm connector (C100) is required to connect to 100mm pipe.

204×60 to 125 Offset Straight Adaptor A204125
Used to connect 204x60mm ducting to 125mm round male fittings. A 125mm connector (C125) is required to connect to 125mm pipe.

220×90 to 150 Offset Straight Adaptor A220150
Used to connect 220x90mm ducting to 150mm round male fittings. A 150mm connector (C150) is required to connect to 150mm pipe.

Top Quality UK Manufactured Ducting

Supplied in one-meter lengths for ease of transport and installation. Our plastic ducting is manufactured in the UK using high-quality materials, ensuring durability for both domestic and commercial systems. It is perfect for:

• Ventilation systems
• Kitchen extractor fans
• Bathroom fans
• In-line extract fans
• Long ductwork runs for:
  • Whole house ventilation
  • Passive stack vent
  • Positive input ventilation
  • Air conditioning
  • HVAC
  • Heat recovery systems

Compatibility

Compatible with most manufacturers, including:

Performance

Solid rigid ducting offers superior airflow performance compared to flexible PVC or aluminium ducts. It is suitable for compliance with Part F Building Regulations.

Installation

For optimal airtightness and durability, we recommend using plastic ducting sealant and aluminium duct sealing tape:

1. Apply duct sealant to pipe connections.
2. Push fittings together.
3. Apply aluminium duct sealing tape over the joint.

Alternatively, use self-sealing fittings, which reduce installation time by up to 70% and can be easily dismantled if needed.

Insulation of Ductwork

If ducting is in a cold area (e.g., loft space), it should be insulated to prevent condensation. The insulation must:

• Be 25mm thick
• Have a thermal conductivity of 0.04W/(m.k) or lower

If no loft space is available, insulation is still needed for intake and exhaust legs that carry cold air in warm spaces. Insulation can be achieved by wrapping PVC ducting with 25mm duct wrap with a silver foil face and 25mm rockwool.

Note: Bubble wrap (foil wrap with air bubbles) is no longer compliant with building control regulations.

Available Sizes

• 110x54mm to 100mm
• 204x60mm to 125mm
• 220x90mm to 150mm

For larger ductwork, we recommend using metal spiral ducting and fittings for enhanced strength.