Leaking cartridge filter

I have a Jacuzzi j-c150 cartridge filter.  It has begun leaking around the top.  I tried replacing the o-ring.  No help.  What can I try to resolve this issue?

You can try putting more lubricant on the o-ring. It sounds simple but it frequently works. We recommend a silicone or teflon lubricant.

If that doesn’t work, the next step would be replacing the complete lid assembly.