large round vent cap

I am looking for a 4 or 5 inch round vent cap that unscrews. It has a threaded collar in the middle of the underneath that screws on to a threaded stud. This cap is grey in color and about 4 or 5 inches. It is the vent cap on the bathroom. This is on a 2011 Elkridge fifth wheel. Thanks

deereranch6 said:

I am looking for a 4 or 5 inch round vent cap that unscrews. It has a threaded collar in the middle of the underneath that screws on to a threaded stud. This cap is grey in color and about 4 or 5 inches. It is the vent cap on the bathroom. This is on a 2011 Elkridge fifth wheel. Thanks

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It is called an RV Mushroom Vent. As far as I know, lots of people lose the cap (they self unscrew in the road vibration and wind), but it is NOT sold separately. Here is an E-Bay link for the entire vent: https://www.ebay.com/p/?iid=222017060619&lpid=82&&&ul_noapp=true&chn=ps

When you screw the new cap on, put some rubberized adhesive (RVers Goop) on the threads to keep it on, yet make it able to be removed, if needed.

To answer your question it is an attic vent, not the vent for the bathroom.
The smaller ones you see on the roof are for the tank vents.

Peace
Dave

Thank for the information,that is what I needed.