Chaffee Engineering VUJW White Vac-U-Jet

Got a "new to me" RV that has these on the roof. They were broken and cracked. I was delighted to find replacements on Amazon. The cost was reasonable, the delivery was quick, the design is worthy and functional. Do they work? Should. The RV manufacturer thought so. I don't know. But I'm happy with Chaffee Engineering and Amazon. Again, one of life's little pleasures.

These work Great. We put 2 of them on our RV and they are certainly more durable than the original equipment ones that fell apart after only 4 years.

Does as expected.

These came on our 2012 Tiffin motorhome. They work good UNTIL the wind come from behind the coach rather than the front. Then, instead of an exhaust created by the design, you get a funnel which pushes the gases into the coach. We have to put tape over the over the back of the exhaust to keep the odor out of the coach when the winds are from the rear.