I just happened to notice this pastime week that sense filters have a lot less microns than OEM.
I should probably stop using them.
If sens was a mis type for Stens you will see they are 28 micron which is 2 micron FINER than the Kawasaki specificationj
When you are talking about filter media, the mesh size is an average , much like Hp on engines so the kawakasi 30 micron is +/- 10% so 27 to 33 micron.
I have made warranty claims against Kawasaki twice where the dealer saw the Stens oil filter and immediately rejected the claim.
I got this in writing & sent it to my Stens rep.
Two days latter a brand new engine turned up at the shop for one and a new head turned up at the dealers for the other.
Stens oil filters are made by Champion ( who make the filters for Kohler & Briggs ) and come with full warranty so don't get fearful about using them, Stens also stand behind them.