I bought a new one, just because it was like $30 and I didn't want to clean it....lol
This is why. I can clean both ends of it and make sure there is flow thru it, but I cannot see inside that tube and I have it off and it is not expensive, so I am replacing it. It is just another thing on my list that I can check off and move on with no "unknowing". I know I have said I like to spend other people's money but I like to spend my money too, on my rig.
But, thanks for asking.
There are lots of non wear items that get replaced just because. I am a "just because" guy, within reason.