Please note that we are currently experiencing a high number of orders and that the current lead time on all products manufactured to order will be approx. 7 - 10 working days. Off the shelf products are unaffected.

Please note we are currently unable to dispatch to Northern Ireland.

Please note that due to a technical issue we are currently unable to accept Paypal payments.

400mm 30° Bend

Ventilation Ducting  | Rectangular Ductwork | 30° 45° & 60° Bends | 30° Bends |  400mm 30° Bend

400mm Width 30° Rectangular Bend

The size stated above refers to width. Use drop-down menu to select depth. The default angle is 30° but there is the option to adjust this using the angle drop down. For a more precise angle use the 'Any other info' text box.

Angles under 30° may be supplied with a mitred back rather than a radius (curved) back as shown in the image.

Connections A and B refer to the connection methods to be used on either end of the bend. Doby frames or slip joints are standard connections for duct assembly. Sheet metal flanges are not a general connection method but can be useful when connecting to other ventilation equipment.

Although selectable on all sizes - and possibly necessary on your particular installation - we do not recommend slip joints for general duct assembly on ducts over 400mm in any one dimension.

These ducts are all made to order, so if you wish to make minor changes to the sizes, please use the 'other info' box below.



Connection A

Connection B

Any other info or specific requirement (optional):


400mm Width 30 Rectangular Bend

Your Basket


View BasketCheckout
Best Sellers

100 dia 90° Pressed Bends with Seals

100 dia 90 Pressed Bends with Seals


600mm 30x30 Cantilever Support

600mm 30x30 Cantilever Support


PU S1 Clear Extraction Hose 10m Length

PU S1 Clear Extraction Hose 10m Length

M8 Back Plate Threaded Rod Hanger

M8 Back Plate Threaded Rod Hanger


100mm dia Chrome Exhaust Valve

100mm dia Chrome Exhaust Valve