Reddit reviews 6 to 4 Duct Reducer Ductwork Reducer
We found 3 Reddit comments about 6 to 4 Duct Reducer Ductwork Reducer. Here are the top ones, ranked by their Reddit score.
6x4 sheet metal duct reducer6 to 4 duct reducer6 Inch to 4 Inch Duct Reducer Duct Increaser.Sheet metal Ducting Reducer.Duct Reducer in stock - fast shipping.
You need something like this
If you have this
I use a 6" duct inline blower with a vent to the roof.
On the laser itself I have a rectangular to 4" adapter that slots right into the back of the laser (sealed up with aluminum tape), a 4" flex hose, and a 6" to 4" reducer to connect to the blower.