Greddy Profec B Spec-II Filter

[jway288]

I have searched everywhere and can't find how or where to order a replacement filter for it. Mine is beginning to get a little dirty and I like to keep up on maintenance. As the title states I have the Greddy Profec B Spec-II. I'm talking about the little plastic filter with what appears to be a cotton membrane of some sort the goes in the vacuum line feeding the unit.

Also if anyone knows of a good place to get a replacement filter for the HKS SSQV I would appreciate it. The Spec II's filter and the SSQV look almost identical. Any help would be greatly appreciated. Thanks in advance.