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100mm Rigid Ducting

19 products

Browse our range of 100mm rigid ducting for bathroom extractor fans, en-suite ventilation and small kitchen extract systems. 100mm (4 inch) is the standard duct diameter for most domestic extractor fans, making it the most popular size for residential ventilation projects.

Our rigid round ducting delivers better airflow than flexible alternatives — less resistance means your fan performs closer to its rated extraction rate, keeping your home properly ventilated. We stock straight lengths, bends, connectors, reducers and wall plates from trusted brands including Domus and Systemair.

All fittings are push-fit for easy installation without specialist tools. Whether you're running duct through a loft space, along a ceiling void or through an external wall, rigid PVC ducting gives you a clean, permanent installation that won't sag or kink over time. Need help choosing the right components? Our ventilation specialists are here to help — call or email for free expert advice. Fast UK delivery available on all orders, with trade accounts for regular buyers.

Showing 1 - 19 of 19 products

Rigid round plastic ducting by Domus Ventilation, 100mm diameter by 2m length for ventilation and air distribution.

Rigid round plastic ducting by Domus Ventilation, 100mm diameter by 2m length for ventilation and air distribution.

Out of stock

Contact us for an estimated delivery date

domus ventilation

SKU: 1200-4

Domus 1200-4 EasiPipe Rigid Round Duct 100mm x 2m

100mm diameter
2m straight length
EasiPipe 100

Out of stock

Contact us for an estimated delivery date

£17.27

Domus Ventilation 100mm round plastic ducting connector for EasiPipe rigid duct systems, straight pipe connection.

Domus Ventilation 100mm round plastic ducting connector for EasiPipe rigid duct systems, straight pipe connection.

In stock

Next day delivery
available

domus ventilation

Domus 493 EasiPipe Straight Connector 100mm

100mm diameter
Straight connector
EasiPipe 100

In stock

Next day delivery available

£3.83

Rigid 100mm round plastic ducting 90-degree right angle bend by Domus Ventilation, designed for efficient airflow in ventilation systems.

Rigid 100mm round plastic ducting 90-degree right angle bend by Domus Ventilation, designed for efficient airflow in ventilation systems.

In stock

Next day delivery
available

domus ventilation

Domus 490 EasiPipe 90° Bend 100mm

100mm diameter
90° bend
EasiPipe 100

In stock

Next day delivery available

£6.55

Rigid round plastic ducting 45-degree bend from Domus Ventilation, 100mm diameter for efficient ventilation systems.

Rigid round plastic ducting 45-degree bend from Domus Ventilation, 100mm diameter for efficient ventilation systems.

In stock

Next day delivery
available

domus ventilation

Domus 491 EasiPipe 45° Bend 100mm

100mm diameter
45° bend
EasiPipe 100

In stock

Next day delivery available

£5.69

Domus ventilation round plastic spigot adaptor from 100mm to 125mm for ducting, shown in close-up view.

Domus ventilation round plastic spigot adaptor from 100mm to 125mm for ducting, shown in close-up view.

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 round plastic spigot adaptor from 100mm to 150mm for ducting connections in ventilation systems.

Domus Ventilation round plastic spigot adaptor from 100mm to 150mm for ducting connections in ventilation systems.

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 round plastic ducting spigot adaptor, 110mm to 100mm diameter, for connecting ventilation ducts.

Domus Ventilation round plastic ducting spigot adaptor, 110mm to 100mm diameter, 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

Rigid round plastic ducting from Domus Ventilation, 100mm diameter and 350mm length, designed for ventilation systems.

Rigid round plastic ducting from Domus Ventilation, 100mm diameter and 350mm length, designed for ventilation systems.

In stock

Next day delivery
available

domus ventilation

Domus 135-4 EasiPipe Rigid Round Duct 100mm x 350mm

100mm diameter
350mm straight length
EasiPipe 100

In stock

Next day delivery available

£3.49

Domus Ventilation round plastic ducting 100mm T-piece for ventilation systems, showing a T-shaped duct connector.

Domus Ventilation round plastic ducting 100mm T-piece for ventilation systems, showing a T-shaped duct connector.

In stock

Next day delivery
available

domus ventilation

Domus 492 EasiPipe T-Piece 100mm

100mm diameter
T-piece
EasiPipe 100

In stock

Next day delivery available

£12.35

Domus Ventilation round plastic ducting Y-piece, 100mm diameter, for efficient air distribution in ventilation systems.

Domus Ventilation round plastic ducting Y-piece, 100mm diameter, for efficient air distribution in ventilation systems.

In stock

Next day delivery
available

domus ventilation

Domus 499 EasiPipe Y-Piece 100mm

100mm diameter
Y-piece
EasiPipe 100

In stock

Next day delivery available

£11.48

Domus DD030 elbow bend with fixed socket for ducting, made of durable material, used in ventilation systems.

Domus DD030 elbow bend with fixed socket for ducting, made of durable material, used in ventilation systems.

In stock

Next day delivery
available

domus ventilation

Domus DD030 System 100 Elbow with 100mm Fixed Socket 110 x 54mm

110 x 54mm
Elbow + 100mm fixed socket
System 100

In stock

Next day delivery available

£4.04

Domus Ventilation DD071 round to rectangular duct adapter, 100mm diameter to 110x54mm rectangular duct, for ventilation systems

Domus Ventilation DD071 round to rectangular duct adapter, 100mm diameter to 110x54mm rectangular duct, for ventilation systems

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 150mm to 100mm plastic ducting reducer, round rigid ducting accessory for HVAC ventilation systems.

Domus Ventilation 150mm to 100mm plastic ducting reducer, round rigid ducting accessory for HVAC ventilation systems.

In stock

Next day delivery
available

domus ventilation

Domus Rigid Round Plastic Ducting 150mm to 100mm Reducer

150mm To 100mm Reduction
Rigid Round Duct Reducer
Domus Round Ducting System

In stock

Next day delivery available

£2.82

Domus Ventilation 441 Elbow Bend and Rotating Spigot for ducting, showing metal fittings and connection points for ventilation systems.

Domus Ventilation 441 Elbow Bend and Rotating Spigot for ducting, showing metal fittings and connection points for ventilation systems.

In stock

Next day delivery
available

domus ventilation

Domus 441 Supertube Elbow with 100mm Rotating Spigot 204 x 60mm

204 x 60mm
Elbow + 100mm rotating spigot
Supertube

In stock

Next day delivery available

£8.38

Domus Ventilation round plastic spigot adaptor, 100mm to 80mm ducting connector, used for ventilation system installation.

Domus Ventilation round plastic spigot adaptor, 100mm to 80mm ducting connector, used for ventilation system installation.

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 Ventilation threaded hose connector with spigot, 100mm diameter, rounded ducting accessory for secure ventilation connections.

Domus Ventilation threaded hose connector with spigot, 100mm diameter, rounded ducting accessory for secure ventilation connections.

In stock

Next day delivery
available

domus ventilation

Domus 124-4 EasiPipe Threaded Hose Connector 100mm

100mm
Threaded hose connector
EasiPipe 100

In stock

Next day delivery available

£1.16

Domus Ventilation 494 Rigid Straight Ducting Connector with Damper, metallic ducting component for efficient ventilation systems

Domus Ventilation 494 Rigid Straight Ducting Connector with Damper, metallic ducting component for efficient ventilation systems

In stock

Next day delivery
available

domus ventilation

Domus 494 EasiPipe Straight Connector with Damper 100mm

100mm diameter
Connector with damper
EasiPipe 100

In stock

Next day delivery available

£4.20

Domus 495 straight ducting connector with damper and wall plate for ventilation systems, shown in the image.

Domus 495 straight ducting connector with damper and wall plate for ventilation systems, shown in the image.

In stock

Next day delivery
available

domus ventilation

Domus 495 EasiPipe Connector with Damper and Wall Plate 100mm

100mm diameter
Damper and wall plate
EasiPipe 100

In stock

Next day delivery available

£5.02

Domus 496 Pipe Fastener, 100mm ducting accessory for secure pipe installation, made by Domus Ventilation.

Domus 496 Pipe Fastener, 100mm ducting accessory for secure pipe installation, made by Domus Ventilation.

In stock

Next day delivery
available

domus ventilation

Domus - 496 Pipe Fastener 100mm

100mm diameter
Pipe Fastener
EasiPipe 100 System

In stock

Next day delivery available

£1.61