Rectangular Ducting Connector

Run ductwork around obstacles, along walls, and into ceilings with superior durability over flexible alternatives.

Product Variants & Specifications

110x54mm Connector (C110) – Low-profile design for ceilings, floor slabs, or above kitchen units.
204x60mm Connector (C204) – Ideal for high-powered cooker hood extractors & whole-house ventilation systems.
220x90mm Connector (C220) – Suitable for mechanical ventilation & heat recovery systems in homes & offices.

Key Features

Low-profile design – Fits inside ceilings, floors, or above kitchen units.
Durable & rigid – Outperforms flexible ducting in airflow & strength.
Compliant with Part F Building Regulations.
Ideal for domestic & commercial ventilation – Compatible with cooker hoods, heat recovery systems & MVHR.

Compatibility

Compatible with most major manufacturers:

Size	Verplas	Vent-Axia	Manrose	Domus	Nuaire
110x54mm	VKC235	436605	40200	40020	PVC020WH
204x60mm	VKC5608	436623	58200	520	PVC520WH
220x90mm	VKC5708	403026	55200	920	-

Installation Guide

For optimal airtightness & durability:
Apply plastic ducting sealant to the male fitting.
Push fittings together.
Secure with aluminium duct sealing tape.
Alternatively, self-sealing fittings can be used – reducing installation time by up to 70%.

Insulation of Ductwork

If installed in a cold area (e.g. loft space), insulation is required.
Required insulation: 25mm thickness & thermal conductivity of 0.04W/(m.k) or lower.
How to insulate ducting: Wrap with 25mm duct wrap (silver foil face) & Use 25mm rockwool.
Bubble wrap insulation is no longer compliant with building control regulations.

Available Sizes

110x54mm
204x60mm
220x90mm

For larger ducting, we recommend using metal spiral ducting and fittings due to their superior strength.