Manthorpe Manthorpe Rectangular-to-Round Duct Adapter – Trade-Grade Roof Vent Connector for Flexible Ducting, Matte Black Plastic, Precision Fit
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- Real peopleStaffordshire team · 01889 441 404
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- Free UK deliveryOn orders over £75
What it does
Fitting notes
Delivery & returns
Free UK delivery on orders over £75. Packed and sent from our UK warehouse. Delivery policy Returns policy
- Free UK delivery over £75
- Packed in our UK warehouse
- Real help on 01889 441 404
- Secure checkout
- Trade-name manufacturers
- Free UK delivery over £75
- Packed in our UK warehouse
- Real help on 01889 441 404
- Secure checkout
- Trade-name manufacturers
Questions before you buy
Often bought for the same job
The Manthorpe Rectangular to Round Duct Adapter is a professional quality solution for connecting rectangular ventilation outlets to round flexible ducting. Designed for use in roof spaces, ceiling voids, and loft installations, it provides a reliable and secure transition where accuracy and durability matter.
Constructed from thick, trade grade plastic, this adapter features reinforced walls and precise moulding to ensure long term strength and stability. Unlike lightweight alternatives, it is built to withstand real installation conditions, including confined spaces and temperature variation.
The smooth internal transition helps maintain airflow efficiency, reducing turbulence and pressure loss within ventilation and extraction systems. Finished in a matte black plastic, it delivers a clean, professional appearance once installed.
Specifications: Size: 240 x 143 x 110mm | Free Vent Area: 8,600mm² | Upper Connection: 235 x 50mm Tile Vent Outlets | Lower Connection: Ø4" (100mm) Pipe | Material: Polypropylene