Ducting reducer collar 5" to 4" 125mm to 100mm

Downloadable Ducting Chart
PDF File - Opens in a New Window

Airtight Self-Seal Ducting

Please note most of our hoods have a motor outlet of 150mm. You will require a reducer collar to use System125 ducting.

We highly recommend using the largest possible size ducting on every installation to maximise air flow.

Please check each product specification guide to determine what size duct you require.

125mm to 100mm Ducting Reducer Collar

125mm to 100mm Reducer Collar

This reducer collar is used to reduce the ducting size from 5" to 4" (125mm to 100mm)

This reducer should only be used on kitchen extractors that state 4" ducting can be used. Luxair recommend that you read our fitting instructions on each product if you are unsure if this is the correct part.

This reducer is part of our System125 range, commonly referred to as 5 inch ducting, due to the round pipe being 125mm / 5" wide. This system includes both 150mm x 70mm flat ducting and 125mm round ducting as they both have similar airflow rates. We supply adapters should you need to switch between these sizes:

Round to Flat Adapter

Round to Flat Elbow