Roof Vent Cap

I paid $7 for one at an RV store. It looked the same as my one remaining one and was the same size. But it doesn't fit. It has four little posts and a springy metal thing that is supposed to hold it on the pipe but it is just too loose. Mine has four posts with slots in them that catch the partial top on the vent when the cap is rotated. I might try cutting slots in the posts on the new one. Meanwhile, I have gone a year without the cap on the grey tank which doesn't seem to be a problem. What is the purpose of the cap, anyway?

I saw one vent on eBay that opened to the rear and might help the air flow when driving. That might be useful.

Harvey51 wrote:
Some here look promising but none just like mine.

http://www.ebay.ca/sch/i.html?_odkw=watco+pipe+vent+cap&_from=R40&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.Xwatco+plumbing+vent+cap.TRS0&_nkw=watco+plumbing+vent+cap&_sacat=0

Looks like $7 plus $33 shipping from the U.S. I think I will look for Chinese ones with free shipping. What a sad situation.

Hi, I still haven't found anything that will work, I'll keep looking. Looks like I'll have to replace the whole thing, not what I wanted to do, but I guess they don't make that type anymore. Thanks for your post.
Be safe and happy rving.

Some here look promising but none just like mine.

http://www.ebay.ca/sch/i.html?_odkw=watco+pipe+vent+cap&_from=R40&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.Xwatco+plumbing+vent+cap.TRS0&_nkw=watco+plumbing+vent+cap&_sacat=0

Looks like $7 plus $33 shipping from the U.S. I think I will look for Chinese ones with free shipping. What a sad situation.

look on ebay ,under watco pipe cap vent, theres different one,s

I tried a Google search and found: http://www.adventurerv.net/plumbing-vent-cap-wspring-polar-white-p-424.html
Is this it?