.588 in. Barb for Booster Grommet (fits Grommet w/ 13/16 in. OD on Booster), -6 AN Male Flare for Engine Vacuum, Clear Anodized Finish, Use w/ -6 AN Style Vacuum Hose; Earl's billet aluminum brake booster check valve replaces the OEM plastic valve for a clean custom appearance. Choose from black or clear anodized finish & (3) vacuum hose options (3/8 in. hose barb, 1/2 in. hose barb, or -6 AN male flare). Fits most brake boosters or vacuum canisters with 13/16 in. port (inside diameter of the grommet on the brake booster).;.
