Spin-on filter for TR4

My last question was which fan belt to use for Delco alt conversion.  Got the 
right answer from y'all, thanks a bunch. 
 
 Now the new question:  my oil filter conversion says use "FRAM PH2825 or 
similar filter."  I can't find a PH2825.  Closest I came was 2870.  It looks 
like it will fit but not sure about the seal.  I've had this conversion so long 
I don't recall where I got it or who the mfger is.  Any recommendations would 
be appreciated.