DSC04413 Share https://www.iforgeiron.com/gallery/image/37141-dsc04413/ Share on LinkedIn Share on X Share on Facebook {lang="reddit_text" Share via email Share on Pinterest More sharing options... Followers My rotary vacuum union. Made from a PVC union and machined to accept a 3" lip seal with the spring removed. Made one end a bolt on to a flange so I could add a rubbler liner at some point.