spin-on line filter series includes SP-06*10, SP-06*25, ... *10, SP-10*25, mainly used in machinery... spin-on line filter series includes SP-06*10, SP-06*25, SP ... SP-10*25, mainly used in machinery...Feature of spin-on line filter series:1) Aluminum alloy filter head2) Max. operating ... after sale.Reason 10 Written in stone promise that 100% money back guarantee in 60 days spin-on line filter series