This 4-1/4" tall billet spin-on filter has 22MM threads and a standard size o-ring. Like all CM filters it features a billet aluminum body built for strength and durability for a lifetime of use. Heat sink ribs add to filter's functionality and aggressive aesthetic. The filters bottom cap is easily removed with five Allen head bolts for filter element inspection and replacement. A CM 2-5/8" tall synthetic fiber filter element which flows 15 GPM of hot engine oil with no loss of pressure and filters down to 8 microns comes preinstalled.