System 1's Long Billet Spin-on Oil Filters features dual O-ring groves and comes with 2 universal mounting inserts to fit most 3 ¾” diameter X 5 ¼” long Chevrolet, Ford and Chrysler applications with 13/16-16 or ¾-16 threads. Black Anodized finish and meets or exceeds all OEM manufactures specs. Flows 30* G.P.M.