GZip Compression filter for Weblogic 11g.

Hi,
I are using WLS 11g for our application development. I have identified and used PlanetJ gzip compression filter and its working fine in our dev environment. I am looking for alternate commercial supported gzip filter for wls.
Can anybody suggest a commercial gzip filter? Or PlanetJ gzip filter is a good one?. We excepect the application to scale up to 150 users and the filter selected should not be an issue for this. Also is there any official oracle/wls supported gzip filters available?
Any help on this is highly appreciated.
regards
jossy.

Thank you for the answer. But currently we are looking to including filter at WLS as the suggestion by you will involve lot of architectural changes. Could you please answer if any weblogic/oracle supported filter is avaialble for enabling compression at WLS.
thanks and regards
jossy.

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