[R-390] AC line input filters

[Perry Sandeen]

List,
I need to by 10 ac input line filters for some receivers.
Here be the problem:
New Corcom from Mouser  $7.47 each when buying 10.
New China equivalents are about $3 each.
If I was buying just one or two, I'd go with Mouser......
Since all the computer PS come with the China versions, their selling a lot in China.
So the question is of quality and comparable RFI/EMI suppression.
Thoughts?
Regards,
Perrier