My place only has 6 inch wall opening and cannot be hacked.
Can someone please recommend a Kitchen Hood and Hob package?
Gas stove, not induction

Budget within 2k

I'm looking at Elba's Ehq9327 at the moment, claiming to be 2000m3/h but it comes with 7" flex duct
Or can I just go along with this and get a reducer?

Thanks!