900403956 Genuine 200mm Flue Duct Joiner AR200FJ for Electrolux Group Rangehood Ducting

When one length of duct won't reach, or a damaged section needs cutting out, a joiner links two pieces into one run. 900403956 is a genuine Electrolux 200mm flue joiner, accessory code AR200FJ, for joining 200mm rangehood ducting. Both pieces of duct need to be 200mm for the joiner to seal properly, so measure before you order. It's a small part, but a loose or leaking joint lets greasy, moist air into the ceiling space.

Why a proper joiner beats tape alone

Butting two duct ends together and wrapping them in tape might hold for a while, but heat and vibration soon loosen it. A joiner gives both ends a firm sleeve to slide onto, so the joint stays straight and airtight. That matters because leaks in a rangehood duct release steam and grease into the roof or ceiling cavity, where they can lead to mould, stains and odours. A joined run that stays round and sealed also keeps the airflow, and the rangehood's performance, where it should be.

Part details

• Genuine Electrolux part 900403956
• Electrolux accessory code AR200FJ
• Joiner for 200mm flue or duct
• Joins two lengths into one run

Joining two duct lengths

Turn the rangehood off at the wall before working on the duct. Cut both duct ends square and clean, then slide each one fully over the joiner so they meet near the middle. Wrap each joint with foil duct tape and add clamps for a firmer hold. Support the joined section so its weight sits on the framing, not the joint.

Questions about this part

Can I join flexible duct to rigid duct with this?

As long as both are 200mm, a joiner like this can link them. Push each end fully onto the joiner and tape both joints. If one side is a different size, use a reducer instead.