Vent cover for fresh water tank?

[jim1521]

I’ve got a vent cover on the roof that has crumbled from the sun. I believe it is for the fresh water tank. It is white, and is the only one that threads on. Here’s a picture of it. It is in the very center of the roof, about 5” in diameter. This picture shows it with the cover removed.



I can’t find it anywhere on the parts list. Does anybody know what this part number is?

EDIT: I think I found it:
https://www.etrailer.com/RV-Vents-and-Fans/JR-Products/37202-29125.html

I’ll let you know if it fits.

 

[gbkims]

Looks like an attic vent.
Exterior > Attachments

https://www.granddesignrv.com/owner-support/parts/detail/22400
VENT ATTIC WHITE PU 03230 NO LONGER AVAILABLE SEE 590557

https://www.granddesignrv.com/owner-support/parts/detail/40996
590557 : VENT ATTIC 5 1/4 X 1 1/4 WHITE EXTERIOR VENT

Reminds me a bit of the JR Products 02-29125 Mushroom Style Plumbing Vent.

 

[jim1521]

Gene, yep that's the one!

 

[CoChris-MGRV]

That is an attic vent. Not a tank vent. Your fresh water tank vent is also the overflow. It is a small piece of PEX pipe sticking below the trailer. The grey & black tanks are vented through the roof in (most likely) a single combined vent stack.

Chris

 

[jim1521]

That is an attic vent. Not a tank vent. Your fresh water tank vent is also the overflow. It is a small piece of PEX pipe sticking below the trailer. The grey & black tanks are vented through the roof in (most likely) a single combined vent stack.

Chris

Chris, thanks for that info. I never knew there was an attic vent!

I have three black colored roof vents, 2 for the two gray tanks and one for the black tank.

 

[cottonakin]

Jim, did you get the one from etrailer and did it work? I also need this vent cover.