This is a 90 degree elbow adaptor from Manrose, used to connect round ducting or flexible hose to flat channel ducting in a cooker hood extraction run. It's a small but useful fitting where the ductwork needs to change direction or switch shape, typically behind or above a hood where space is tight against cabinetry or a ceiling void.

The female connection at one end takes a 100mm round pipe or flexi hose, while the other end steps down to a 110 x 54mm flat channel profile. This means you can start your extraction run in round pipe from the fan or hood outlet, then switch to flat ducting where a low profile is needed, such as running above wall cabinets or through a shallow void. The 90 degree bend lets the ductwork turn a corner without kinking flexible hose or forcing an awkward straight run.

Key

Benefits

• Connects round 100mm ducting to flat 110 x 54mm channel ducting, giving you flexibility in how the extraction route is planned around your kitchen layout.
• The 90 degree bend allows the ducting to change direction cleanly, useful where a straight run isn't possible due to joists, beams or cabinet carcasses.
• Works with standard grilles and fans, so it fits into a typical cooker hood ducting system without needing custom parts.
• White finish matches other Manrose ducting components, so any visible sections sit neatly if the run isn't fully hidden.
• Backed by a 3 year manufacturer's guarantee, which gives you some reassurance on a part that's often fitted out of sight and rarely thought about again.

One thing worth knowing: this adaptor only bridges between round 100mm pipe and flat 110 x 54mm channel ducting. If your extraction run needs to continue in flat profile, you'll need matching flat channel ducting to complete it. Your Mastercraft designer will work out the full ducting route as part of your kitchen plan, so the right connectors and lengths are specified from the start.

Specifications