Still skeptical, I went looking for online images that showed the inside. I found only one. It looks like it’s lined not with bellows, but a spiral-wound tube similar to flexible electrical conduit. No assurance they’re all like that, of course.

 

Dam my lying eyes.

 

Funny you can’t hide them Donbrew!

this ZZP part shows the interior of the pipe

https://zzperformance.com/products/f...pe-replacement

 

I guess you could just look at #1, it shows the inside pretty well.

 

(This seller seems to be ZZP’s Amazon store)

 

Better price…

 

OK, don't look at the OP pic. Scrolling is so hard.
I have installed 2, nether had anything but mesh.


Looks like mesh to me.

 

I’m confused. You seem to be disputing something I didn’t say.

That pic is the reason I’d want the kind with the liner, not just mesh.

Here’s one I wouldn’t want, because it appears to be nothing but mesh.