Question about compression fittings

A few days ago I posted a question about repairing a burst 3/8" soft copper pipe. Today I posted a question about some water filter housings I bought at an auction. Amazingly, the questions converged, because in one of the boxes was a bunch of fittings; including several 3/8" compression unions!
There are plastic and brass rings to go on the tubing. I am guessing the brass are for copper, and the plastic are for plastic. Is that correct? There also little lipped brass tubes; they go in plastic tubing? Can I use these with PEX?
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
I think what you state is correct but you might consider buying/borrowing a good book on plumbing.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

The ones I bought are a gray plastic and specifically say they can be used with pex or copper or cpvc. I don' tknow about the others, but if the od of the tubing is the right size, I suspect they would work but can't say for certain.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Site Timeline

HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.