I have used a few of the Tjernlund D-3 Inline Draft Inducers in my spray washer venting. They take just a small amount of flange maneuvering to get a good fit. I used silicon gasket sealer to help seal it to the 6″ PVC. They keep the smell and steam out of the Shop quite well.
Randy Torvinen
Torvinen’s Machine Shop
Menahga, MN