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Plastic Ducting Adaptors

12 products

Plastic duct adaptors join rigid ducting of different sizes or shapes, so a fan, MVHR unit or terminal can connect to the duct it would not otherwise fit. We stock Domus round spigot adaptors that step between 80mm, 100mm, 110mm, 125mm, 150mm and 200mm, round to rectangular adaptors linking 100mm, 125mm and 150mm round duct to 110 x 54mm, 204 x 60mm and 220 x 90mm flat duct, and an in-line adaptor from 220 x 90mm to 204 x 60mm. Use the buttons below to filter by size, or send us the two sizes you need to join: email hello@efans.co.uk or call 0161 399 3825.

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Frequently asked questions

What is a ducting adaptor?

An adaptor connects two ducting components of different sizes or shapes, stepping a duct up or down in diameter, or converting round duct to flat rectangular duct, so a fan, MVHR unit or grille can join ducting it would not otherwise fit.

Spigot adaptor or round to rectangular?

Use a round spigot adaptor to change between circular duct sizes, for example 100mm to 125mm. Use a round to rectangular adaptor to connect round duct to a flat duct system, for example 204 x 60mm flat duct to 125mm round. Match the two sizes you are joining.

How do the size buttons work?

Each adaptor is listed under both of its sizes, so selecting 125mm shows every adaptor with a 125mm end. Pick one of the two sizes you are joining, then choose the adaptor with the other size you need.

Will stepping down a size affect airflow?

Reducing the duct size adds resistance, so keep reduced sections as short as possible, for example only at the fan or terminal connection. Where possible run the main duct at the larger size.

80mm 100mm 110mm 125mm 150mm 200mm 110 x 54mm 204 x 60mm 220 x 90mm

Showing 1 - 12 of 12 products

Domus Ventilation EasiPipe round adaptor, 100mm to 125mm ducting connector for ventilation systems

Domus Ventilation EasiPipe round adaptor, 100mm to 125mm ducting connector for ventilation systems

In stock

Next day delivery
available

domus ventilation

Domus 119 EasiPipe Round Adaptor 100mm to 125mm

100mm to 125mm
In-line reducer
EasiPipe

In stock

Next day delivery available

£3.19

Domus Ventilation EasiPipe round ducting adapter, 100mm to 150mm, for connecting ventilation ducts with smooth transition.

Domus Ventilation EasiPipe round ducting adapter, 100mm to 150mm, for connecting ventilation ducts with smooth transition.

In stock

Next day delivery
available

domus ventilation

Domus 619 EasiPipe Round Adaptor 100mm to 150mm

100mm to 150mm
In-line reducer
EasiPipe

In stock

Next day delivery available

£4.32

Domus Ventilation Domus 120 EasiPipe round ducting adaptor, 110mm to 100mm for connecting ventilation ducts.

Domus Ventilation Domus 120 EasiPipe round ducting adaptor, 110mm to 100mm for connecting ventilation ducts.

In stock

Next day delivery
available

domus ventilation

Domus 120 EasiPipe Round Adaptor 110mm to 100mm

110mm to 100mm
In-line reducer
EasiPipe

In stock

Next day delivery available

£2.72

Domus Ventilation EasiPipe round ducting adaptor connecting 150mm to 200mm duct sizes for ventilation systems.

Domus Ventilation EasiPipe round ducting adaptor connecting 150mm to 200mm duct sizes for ventilation systems.

In stock

Next day delivery
available

domus ventilation

Domus 819 EasiPipe Round Adaptor 150mm to 200mm

150mm to 200mm
In-line reducer
EasiPipe

In stock

Next day delivery available

£3.18

Domus Ventilation Domus 570 Supertube ducting adaptor from round to rectangular, 204x60mm to 125mm, for ventilation duct installation.

Domus Ventilation Domus 570 Supertube ducting adaptor from round to rectangular, 204x60mm to 125mm, for ventilation duct installation.

Out of stock

Contact us for an estimated delivery date

domus ventilation

Domus 570 Supertube Round to Rectangular Adaptor 204 x 60mm to 125mm

204 x 60mm to 125mm round
Round to rectangular adapter
Supertube

Out of stock

Contact us for an estimated delivery date

£8.38

Domus Ventilation EasiPipe round ducting adaptor, 125mm to 150mm, for connecting ventilation pipes with flexible, durable plastic.

Domus Ventilation EasiPipe round ducting adaptor, 125mm to 150mm, for connecting ventilation pipes with flexible, durable plastic.

In stock

Next day delivery
available

domus ventilation

Domus 118 EasiPipe Round Adaptor 125mm to 150mm

125mm to 150mm
In-line reducer
EasiPipe

In stock

Next day delivery available

£3.19

Domus Ventilation Megaduct round to rectangular duct adaptor, 220x90mm to 150mm, for ducting systems.

Domus Ventilation Megaduct round to rectangular duct adaptor, 220x90mm to 150mm, for ducting systems.

In stock

Next day delivery
available

domus ventilation

Domus 970 Megaduct Round to Rectangular Adaptor 220 x 90mm to 150mm

220 x 90mm to 150mm round
Round to rectangular adapter
Megaduct 220

In stock

Next day delivery available

£10.97

Domus DD070 round to rectangular ducting adaptor, 110x54mm to 100mm, for ventilation systems, shown in the image.

Domus DD070 round to rectangular ducting adaptor, 110x54mm to 100mm, for ventilation systems, shown in the image.

In stock

Next day delivery
available

domus ventilation

Domus DD070 System 100 Round to Rectangular Adaptor 110 x 54mm to 100mm

110 x 54mm to 100mm round
Round to rectangular adapter
System 100

In stock

Next day delivery available

£4.41

Domus Ventilation EasiPipe round ducting adaptor 100mm to 80mm for efficient ventilation system connections.

Domus Ventilation EasiPipe round ducting adaptor 100mm to 80mm for efficient ventilation system connections.

In stock

Next day delivery
available

domus ventilation

Domus DD019 EasiPipe Round Adaptor 100mm to 80mm

100mm to 80mm
In-line reducer
EasiPipe

In stock

Next day delivery available

£4.74

Domus DD071 System 100 round to rectangular duct adaptor, 110x54mm to 100mm, for ventilation ducting, shown in the image.

Domus DD071 System 100 round to rectangular duct adaptor, 110x54mm to 100mm, for ventilation ducting, shown in the image.

In stock

Next day delivery
available

domus ventilation

Domus DD071 System 100 Round to Rectangular Adaptor 110 x 54mm to 100mm

110 x 54mm to 100mm round
Round to rectangular adapter
System 100

In stock

Next day delivery available

£2.30

Domus Ventilation Megaduct to Supertube ducting adaptor, 220x90mm to 204x60mm, used for connecting ventilation ducts.

Domus Ventilation Megaduct to Supertube ducting adaptor, 220x90mm to 204x60mm, used for connecting ventilation ducts.

In stock

Next day delivery
available

domus ventilation

Domus 958 Megaduct to Supertube Adaptor 220 x 90mm to 204 x 60mm

220 x 90mm to 204 x 60mm
In-line reducer
Megaduct 220 to Supertube

In stock

Next day delivery available

£8.69

Domus EasiPipe round ducting adaptor, 100mm to 125mm, for ventilation systems, shown in the image.

Domus EasiPipe round ducting adaptor, 100mm to 125mm, for ventilation systems, shown in the image.

In stock

Next day delivery
available

domus ventilation

Domus 544 EasiPipe Round Adaptor 100mm to 125mm

100mm to 125mm
In-line reducer
EasiPipe

In stock

Next day delivery available

£1.82